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EP1753325B1 - Show case for conserving and/or displaying objects - Google Patents

Show case for conserving and/or displaying objects Download PDF

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Publication number
EP1753325B1
EP1753325B1 EP05756513A EP05756513A EP1753325B1 EP 1753325 B1 EP1753325 B1 EP 1753325B1 EP 05756513 A EP05756513 A EP 05756513A EP 05756513 A EP05756513 A EP 05756513A EP 1753325 B1 EP1753325 B1 EP 1753325B1
Authority
EP
European Patent Office
Prior art keywords
showcase
interior
air
protective gas
gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP05756513A
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German (de)
French (fr)
Other versions
EP1753325A1 (en
Inventor
Thomas Hahn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Glasbau Hahn GmbH
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Glasbau Hahn GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Glasbau Hahn GmbH filed Critical Glasbau Hahn GmbH
Publication of EP1753325A1 publication Critical patent/EP1753325A1/en
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Anticipated expiration legal-status Critical
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F3/00—Show cases or show cabinets
    • A47F3/001—Devices for lighting, humidifying, heating, ventilation
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F5/00—Show stands, hangers, or shelves characterised by their constructional features
    • A47F5/10—Adjustable or foldable or dismountable display stands

Definitions

  • the invention relates to a display case for storing and / or display of objects, the bottom and the lid construction more or less enclose the interior of the showcase, which is closed to the outside air as far as possible airtight.
  • the object of the invention is therefore to provide a showcase whose interior contains a gas, wherein it is ensured that a special monitoring of the gas supply is avoided.
  • This object is achieved in that a compressor is provided, through which the air present outside the showcase interior is sucked and compressed and that from the compressed air by a gas generator, a protective gas is generated, which is supplied to the showcase interior, wherein the gas generator inside or outside the showcase is housed.
  • a further embodiment of the invention is that the inert gas before an introduction into the showcase interior of a moistening device is zugeruhrt. If a special room climate is required in the interior of the display cabinet in addition to the protective gas atmosphere, the humidity of the protective gas can be adjusted and / or regulated with the aid of the humidifying device.
  • the supply air 1 from the environment of the showcase is sucked in by a compressor 2 and compressed, for example to a value of 6 to 8 bar.
  • This air is fed to a gas generator 3, which eliminates nitrogen gas from the air by means of an arrangement of membranes.
  • the unneeded residual components of the air, which arise during the process, are supplied to the environment of the showcase.
  • a gas generator consists of an array of membranes, which are housed in a closed housing, wherein at its input air can be supplied and at an output nitrogen gas can be removed. Its construction is in the EP-OS 0 298 531 A1 Therefore, the structure of the menbranes and their mode of action in the context of this description will not be discussed further. The description of said document can be seen that the air must be pressed with a higher pressure in the housing.
  • the nitrogen gas which has a high pressure, is reduced by a pressure reducing valve 4 to a value corresponding to a slight overpressure relative to the air pressure outside the showcase.
  • the nitrogen gas which only has a relative humidity of - 6%, can now be directed into the interior 7 of the showcase. Due to the low overpressure of the nitrogen gas in the interior of the showcase compared to the outside air, a pure nitrogen atmosphere will now be set even after opening the showcase over several hours, since a showcase of the type mentioned is never completely sealed against the outside air.
  • the nitrogen gas exiting at the outlet of the pressure reducing valve 4 must first be fed to a moistening device 5, by which it is enriched with moisture accordingly.
  • the moistening device 5 may function to direct the nitrogen gas over a water surface and thereby absorb moisture.
  • the moist inert gas by means of a cooling device 6 whose moisture and temperature is then adjusted and regulated, while the humidity is brought to a predetermined value, for example 35 to 65%. Since in the compression of the condensate-containing supply air in the compressor 2 due to the humidity water is produced, this can be collected and used to supplement the water supply of the moistening device 5 advantageous.
  • a temperature sensor 9 and a pressure sensor 10 are mounted, both sensors are electrically connected to an electronic control device 8.
  • the temperature of the cooling device 6 is adjusted or regulated to predetermined values as a function of the measured values of the temperature sensor 9 and thus the temperature and the humidity of the nitrogen gas in the interior of the showcase 7.
  • the pressure reducing valve 4 can now be set manually to a specific value. However, it is also conceivable that the pressure reducing valve 4 is adjustable by the control device 8 as a function of the measured values of the pressure sensor 10.
  • the overpressure in the interior 7 of the showcase can be increased slightly, for example, after opening and closing the showcase for a given period of time, in order to make the interior 7 of the showcase refill faster with the nitrogen gas, by the penetrated air due to the leaks is pushed out.
  • the control device 8 can additionally be electrically connected to a door switch or gas density sensor (not shown).
  • the compressor 2 and the gas generator 3 can now be housed in the display case itself and that expediently in its lower part. However, it is also conceivable instead to arrange the two mentioned facilities outside the showcase. Furthermore, it is possible to provide a common compressor 2 and gas generator 3 for a plurality of showcases, in which case the generated nitrogen gas is supplied to the individual showcases via hose lines.

Landscapes

  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezers Or Refrigerated Showcases (AREA)
  • Compressor (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Packages (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Devices For Executing Special Programs (AREA)

Abstract

A showcase for storing and/or displaying objects which require a protective gas atmosphere, the base and the cover construction of the showcase more or less surrounding the showcase interior which is sealed in an airtight manner as far as possible relative to the exterior air, having a compressor (2) by which the air (1) present outwith the showcase interior (7) is suctioned in and compressed. Subsequently a protective gas is produced from the compressed air by a gas producer (3) and is supplied to the showcase interior (7), the gas producer (3) being able to be accommodated within or outwith the showcase. In this way, provision of a supply container for the protective gas is avoided.

Description

Die Erfindung betrifft eine Vitrine zur Aufbewahrung und/oder Zurschaustellung von Gegenständen, deren Boden und deren Deckelkonstruktion den Vitrineninnenraum mehr oder weniger umschließen, welcher gegenüber der Außenluft so weit wie möglich luftdicht abgeschlossen ist.The invention relates to a display case for storing and / or display of objects, the bottom and the lid construction more or less enclose the interior of the showcase, which is closed to the outside air as far as possible airtight.

Ein derartige Vitrine ist bereits bekannt. So wird in der DE-PS 38 05 212 C2 eine Vitrine zur Aufbewahrung und/oder Zurschaustellung von Gegenständen beschrieben, bei welcher zum Schutz der Ausstellungsgegenstände die umgebende Luft im Innenraum der Vitrine nicht nur staubfrei sondern auch noch im Rahmen einer gewünschten Luftfeuchtigkeit gehalten wird. Außer der Staubfreiheit, der Luftfeuchtigkeit, usw. kann nun auch der Fall eintreten, daß neben den genannten Anforderungen bestimmte Gegenstände im Innenraum der Vitrine eine neutrale Umgebung benötigen. Deshalb ist es auch möglich, den Innenraum mit einem neutralen Gas zu füllen, wenn dies der Schutz der ausgestellten Gegenstände es erfordert. In diesem Zusammenhang ist es bereits bekannt, hierzu ein Gas zu verwenden, das in einem Vorratsbehälter bereitgehalten wird.Such a showcase is already known. So will in the DE-PS 38 05 212 C2 a showcase for storage and / or display of objects described in which the surrounding air in the interior of the showcase is not only kept dust-free but also within a desired humidity to protect the exhibits. Apart from the freedom from dust, the humidity, etc., it is now also possible for certain objects in the interior of the showcase to require a neutral environment in addition to the stated requirements. Therefore, it is also possible to fill the interior with a neutral gas, if required by the protection of the exhibited objects. In this context, it is already known to use a gas for this purpose, which is kept ready in a storage container.

Ein derartiger Vorratsbehälter hat den Nachteil, daß dieser ständig auf seinen Füllstand überwacht werden muß. Die Aufgabe der Erfindung besteht nun darin, eine Vitrine anzugeben, deren Innenraum ein Gas enthält, wobei sichergestellt ist, daß eine besondere Überwachung des Gasvorrats vermieden wird.Such a reservoir has the disadvantage that it must be constantly monitored for its level. The object of the invention is therefore to provide a showcase whose interior contains a gas, wherein it is ensured that a special monitoring of the gas supply is avoided.

Diese Aufgabe wird dadurch gelöst, daß ein Kompressor vorgesehen ist, durch welchen die außerhalb des Vitrineninnenraums vorhandene Luft angesaugt und verdichtet wird und daß aus der verdichteten Luft durch einen Gaserzeuger ein Schutzgas erzeugt wird, welches dem Vitrineninnenraum zugeführt wird, wobei der Gaserzeuger innerhalb oder außerhalb der Vitrine untergebracht ist.This object is achieved in that a compressor is provided, through which the air present outside the showcase interior is sucked and compressed and that from the compressed air by a gas generator, a protective gas is generated, which is supplied to the showcase interior, wherein the gas generator inside or outside the showcase is housed.

Durch die Erzeugung des Schutzgases vor Ort kann auf einen Vorratsbehälter für das Schutzgas verzichtet werden. Je nach Ausführung kann nun der Kompressor und der Gaserzeuger einen Bestandteil der Vitrine darstellen, es ist jedoch auch möglich, außerhalb der Vitrine einen Kompressor und einen Gaserzeuger entweder für eine Vitrine oder auch für jeweils mehrere Vitrinen vorzusehen.By generating the protective gas on site can be dispensed with a reservoir for the protective gas. Depending on the design of the compressor and the gas generator can now be a part of the showcase, but it is also possible to provide a compressor and a gas generator outside of the showcase either for a showcase or for several showcases.

Eine weitere Ausbildung der Erfindung besteht darin, daß das Schutzgas vor einer Einleitung in den Vitrineninnenraum einer Befeuchtungsvorrichtung zugeruhrt wird. Wird im Vitrineninnenraum zusätzlich zu der Schutzgasatmosphäre ein besonderes Raumklima benötigt, dann kann mit Hilfe der Befeuchtungseinrichtung die Feuchte des Schutzgases eingestellt und/oder reguliert werden.A further embodiment of the invention is that the inert gas before an introduction into the showcase interior of a moistening device is zugeruhrt. If a special room climate is required in the interior of the display cabinet in addition to the protective gas atmosphere, the humidity of the protective gas can be adjusted and / or regulated with the aid of the humidifying device.

Dies ist besonders vorteilhaft in Verbindung mit einer Kühlvorrichtung, wobei diese mit der Befeuchtungsvorrichtung zusammen arbeitet.This is particularly advantageous in connection with a cooling device, which works together with the moistening device.

Weitere Vorteile ergeben sich aus den Unteransprüchen.Further advantages emerge from the subclaims.

Die Erfindung wird anhand eines Ausführungsbeispiels näher erläutert, welches in der Zeichnung dargestellt ist.The invention will be explained in more detail with reference to an embodiment which is shown in the drawing.

Die Zuluft 1 aus der Umgebung der Vitrine wird von einem Kompressor 2 angesaugt und komprimiert, beispielsweise auf einen Wert von 6 bis 8 bar. Diese Luft wird einem Gaserzeuger 3 zugeführt, welcher mit Hilfe einer Anordnung von Membranen Stickstoffgas aus der Luft ausscheidet. Die nicht benötigten Restbestandteile der Luft, die bei dem Vorgang entstehen, werden der Umgebung der Vitrine zugeführt. Ein derartiger Gaserzeuger besteht aus einer Anordnung von Membranen, die in einem geschlossenen Gehäuse untergebracht sind, wobei an dessen Eingang Luft zugeführt und an einem Ausgang Stickstoffgas abgenommen werden kann. Sein Aufbau ist in der EP-OS 0 298 531 A1 beschrieben (gas separation apparatus and also method for separation gases by means of such apparatus), weshalb auf die Struktur der Menbranen und deren Wirkungsweise im Rahmen dieser Beschreibung nicht weiter eingegangen wird. Der Beschreibung der genannten Druckschrift läßt sich entnehmen, daß die Luft mit einem höheren Druck in das Gehäuse gepreßt werden muß.The supply air 1 from the environment of the showcase is sucked in by a compressor 2 and compressed, for example to a value of 6 to 8 bar. This air is fed to a gas generator 3, which eliminates nitrogen gas from the air by means of an arrangement of membranes. The unneeded residual components of the air, which arise during the process, are supplied to the environment of the showcase. Such a gas generator consists of an array of membranes, which are housed in a closed housing, wherein at its input air can be supplied and at an output nitrogen gas can be removed. Its construction is in the EP-OS 0 298 531 A1 Therefore, the structure of the menbranes and their mode of action in the context of this description will not be discussed further. The description of said document can be seen that the air must be pressed with a higher pressure in the housing.

Das Stickstoffgas, welches einen hohen Druck aufweist, wird durch ein Druckreduzierventil 4 auf einen Wert vermindert, welcher einem geringen Überdruck gegenüber dem Luftdruck außerhalb der Vitrine entspricht. Das Stickstoffgas, das nur noch eine relative Feuchtigkeit von - 6% aufweist, kann nun in den Innenraum 7 der Vitrine geleitet werden. Durch den geringen Überdruck des Stickstoffgases im Innenraum der Vitrine gegenüber der Außenluft wird sich nun auch nach einem Öffnen der Vitrine im Lauf mehrerer Stunden eine reine Stickstoffatmosphäre einstellen, da eine Vitrine der eingangs erwähnten Art nie vollständig gegenüber der Außenluft abgedichtet ist.The nitrogen gas, which has a high pressure, is reduced by a pressure reducing valve 4 to a value corresponding to a slight overpressure relative to the air pressure outside the showcase. The nitrogen gas, which only has a relative humidity of - 6%, can now be directed into the interior 7 of the showcase. Due to the low overpressure of the nitrogen gas in the interior of the showcase compared to the outside air, a pure nitrogen atmosphere will now be set even after opening the showcase over several hours, since a showcase of the type mentioned is never completely sealed against the outside air.

Wird nun im Innenraum 7 der Vitrine zusätzlich ein besonderes Raumklima gewünscht, d.h. zusätzlich eine bestimmte Temperatur und eine vorgegebene Feuchtigkeit des Schutzgases gewünscht, dann muß das am Ausgang des Druckreduzierventils 4 austretende Stickstoffgas zunächst einer Befeuchtungsvorrichtung 5 zugeführt werden, durch welche dieses mit Feuchtigkeit entsprechend angereichert wird. Die Befeuchtungsvorrichtung 5 kann beispielsweise derart wirken, daß das Stickstoffgas über eine Wasseroberfläche geleitet wird und auf diese Weise Feuchtigkeit aufnimmt. Durch eine anschließende Kühlung,des feuchten Schutzgases mit Hilfe einer Kühlvorrichtung 6 wird dann dessen Feuchtigkeit und Temperatur eingestellt und geregelt, dabei wird die Luftfeuchtigkeit auf einen vorgegebenen Wert gebracht, beispielsweise 35 bis 65%. Da bei der Komprimierung der Kondenswasser enthaltenden Zuluft im Kompressor 2 infolge der Luftfeuchtigkeit Wasser entsteht, kann dieses gesammelt und zur Ergänzung des Wasservorrats der Befeuchtungsvorrichtung 5 vorteilhaft verwendet werden.If, in addition, a special room climate is desired in the interior 7 of the showcase, ie in addition a specific temperature and a given temperature Moisture of the shielding gas desired, then the nitrogen gas exiting at the outlet of the pressure reducing valve 4 must first be fed to a moistening device 5, by which it is enriched with moisture accordingly. For example, the moistening device 5 may function to direct the nitrogen gas over a water surface and thereby absorb moisture. By a subsequent cooling, the moist inert gas by means of a cooling device 6 whose moisture and temperature is then adjusted and regulated, while the humidity is brought to a predetermined value, for example 35 to 65%. Since in the compression of the condensate-containing supply air in the compressor 2 due to the humidity water is produced, this can be collected and used to supplement the water supply of the moistening device 5 advantageous.

Im Innenraum 7 der Vitrine ist ein Temperatursensor 9 und ein Drucksensor 10 angebracht, beide Sensoren sind mit einer elektronischen Steuereinrichtung 8 elektrisch verbunden. Mit Hilfe der Steuereinrichtung 8 wird die Temperatur der Kühlvorrichtung 6 in Abhängigkeit der Meßwerte des Temperatursensors 9 und damit die Temperatur und die Feuchtigkeit des Stickstoffgases im Innenraum der Vitrine 7 auf vorgegebene Werte eingestellt bzw. geregelt. Das Druckreduzierventil 4 kann nun manuell auf einen bestimmten Wert fest eingestellt sein. Es ist jedoch auch denkbar, daß das Druckreduzierventil 4 in Abhängigkeit von den Meßwerten des Drucksensors 10 von der Steuereinrichtung 8 einstellbar ist. Damit kann der Überdruck im Innenraum 7 der Vitrine beispielsweise nach dem Öffnen und Schließen der Vitrine für einen vorgegebenen Zeitraum etwas erhöht werden, um zu erreichen, daß sich der Innenraum 7 der Vitrine schneller wieder mit dem Stickstoffgas füllt, indem die eingedrungene Luft infolge der Undichtigkeiten hinaus gedrängt wird. Die Steuereinrichtung 8 kann in diesem Fall zusätzlich mit einem nicht gezeigten Türschalter oder Gasdichtesensor elektrisch verbunden sein.In the interior 7 of the showcase, a temperature sensor 9 and a pressure sensor 10 is mounted, both sensors are electrically connected to an electronic control device 8. With the aid of the control device 8, the temperature of the cooling device 6 is adjusted or regulated to predetermined values as a function of the measured values of the temperature sensor 9 and thus the temperature and the humidity of the nitrogen gas in the interior of the showcase 7. The pressure reducing valve 4 can now be set manually to a specific value. However, it is also conceivable that the pressure reducing valve 4 is adjustable by the control device 8 as a function of the measured values of the pressure sensor 10. Thus, the overpressure in the interior 7 of the showcase can be increased slightly, for example, after opening and closing the showcase for a given period of time, in order to make the interior 7 of the showcase refill faster with the nitrogen gas, by the penetrated air due to the leaks is pushed out. In this case, the control device 8 can additionally be electrically connected to a door switch or gas density sensor (not shown).

Der Kompressor 2 und der Gaserzeuger 3 können nun in der Vitrine selbst und zwar zweckmäßigerweise in deren Unterteil untergebracht sein. Es ist jedoch auch denkbar, statt dessen die beiden genannten Einrichtungen außerhalb der Vitrine anzuordnen. Weiterhin ist es möglich, einen gemeinsamen Kompressor 2 und Gaserzeuger 3 für jeweils mehrere Vitrinen vorzusehen, wobei dann das erzeugte Stickstoffgas den einzelnen Vitrinen über Schlauchleitungen zugeführt wird.The compressor 2 and the gas generator 3 can now be housed in the display case itself and that expediently in its lower part. However, it is also conceivable instead to arrange the two mentioned facilities outside the showcase. Furthermore, it is possible to provide a common compressor 2 and gas generator 3 for a plurality of showcases, in which case the generated nitrogen gas is supplied to the individual showcases via hose lines.

Claims (8)

  1. Showcase for preserving and/or displaying objects, the base and the cover structure of which more or less enclose the showcase interior, which is closed to the outside air to be as airtight as possible,
    characterised in that a compressor (2) is provided, by means of which the air (1) present outside the showcase interior (7) is aspirated and compressed, and that a protective gas is generated from the compressed air by a gas generator (3) and is fed to the showcase interior (7), wherein the gas generator (3) is housed inside or outside the showcase.
  2. Showcase according to claim 1, characterised in that the protective gas is fed to a humidifying device (5) before being introduced into the showcase interior (7).
  3. Showcase according to one of claims 1 or 2, characterised in that the adjustment and/or regulation of the air humidity of the protective gas is conducted by a cooling device (6), which connects to the humidifying device (5).
  4. Showcase according to one of claims 1 to 3, characterised in that the protective gas is introduced into the showcase interior (7) while maintaining a low excess pressure relative to the outside air.
  5. Showcase according to one of claims 1 to 4, characterised in that a temperature sensor (9) connected to a control means (8) is attached in the interior (7) of the showcase, wherein the cooling device (6) is adjusted and/or regulated by the control means (8).
  6. Showcase according to one of claims 1 to 5, characterised in that a pressure sensor (10) is attached in the interior (7) of the showcase and is connected to the control means (8) connected to a pressure reducing valve (4), by means of which the pressure of the protective gas generated by the gas generator (3) is adjustable.
  7. Showcase according to one of claims 1 to 6, characterised in that the water formed in the compressor (2) during compression of the air is fed to the humidifying device (5).
  8. Showcase according to one of claims 1 to 7, characterised in that the protective gas is nitrogen.
EP05756513A 2004-06-07 2005-06-03 Show case for conserving and/or displaying objects Expired - Lifetime EP1753325B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004027750A DE102004027750A1 (en) 2004-06-07 2004-06-07 Showcase for storage and / or display of objects
PCT/EP2005/005973 WO2005120297A1 (en) 2004-06-07 2005-06-03 Show case for conserving and/or displaying objects

Publications (2)

Publication Number Publication Date
EP1753325A1 EP1753325A1 (en) 2007-02-21
EP1753325B1 true EP1753325B1 (en) 2008-10-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05756513A Expired - Lifetime EP1753325B1 (en) 2004-06-07 2005-06-03 Show case for conserving and/or displaying objects

Country Status (12)

Country Link
US (1) US7762095B2 (en)
EP (1) EP1753325B1 (en)
JP (1) JP2008501452A (en)
CN (1) CN1976611B (en)
AT (1) ATE409431T1 (en)
AU (1) AU2005251446B2 (en)
CA (1) CA2566500C (en)
DE (2) DE102004027750A1 (en)
DK (1) DK1753325T3 (en)
EA (1) EA009929B1 (en)
ES (1) ES2310361T3 (en)
WO (1) WO2005120297A1 (en)

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CN101963381A (en) * 2009-07-22 2011-02-02 沈阳航天新阳速冻设备制造有限公司 Humidity regulator

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Also Published As

Publication number Publication date
DE102004027750A1 (en) 2006-01-05
EP1753325A1 (en) 2007-02-21
ES2310361T3 (en) 2009-01-01
EA200602253A1 (en) 2007-04-27
CA2566500A1 (en) 2005-12-22
US7762095B2 (en) 2010-07-27
CN1976611B (en) 2010-09-08
ATE409431T1 (en) 2008-10-15
EA009929B1 (en) 2008-04-28
US20070251252A1 (en) 2007-11-01
DK1753325T3 (en) 2008-12-08
CA2566500C (en) 2012-09-18
CN1976611A (en) 2007-06-06
AU2005251446A1 (en) 2005-12-22
AU2005251446B2 (en) 2010-08-05
WO2005120297A1 (en) 2005-12-22
DE502005005551D1 (en) 2008-11-13
JP2008501452A (en) 2008-01-24

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