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DK1111113T3 - Method and apparatus for making a plate of mineral fibers - Google Patents

Method and apparatus for making a plate of mineral fibers

Info

Publication number
DK1111113T3
DK1111113T3 DK01102183T DK01102183T DK1111113T3 DK 1111113 T3 DK1111113 T3 DK 1111113T3 DK 01102183 T DK01102183 T DK 01102183T DK 01102183 T DK01102183 T DK 01102183T DK 1111113 T3 DK1111113 T3 DK 1111113T3
Authority
DK
Denmark
Prior art keywords
fleece
thickness
making
plate
mineral fibers
Prior art date
Application number
DK01102183T
Other languages
Danish (da)
Inventor
Fredy Zimmerman
Peter Wyss
Bent Jacobsen
Original Assignee
Rockwool Int
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27172403&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK1111113(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from CH00768/96A external-priority patent/CH691816A5/en
Priority claimed from CH02169/96A external-priority patent/CH691960A5/en
Application filed by Rockwool Int filed Critical Rockwool Int
Application granted granted Critical
Publication of DK1111113T3 publication Critical patent/DK1111113T3/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/645—Impregnation followed by a solidification process
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4209—Inorganic fibres
    • D04H1/4218—Glass fibres
    • D04H1/4226—Glass fibres characterised by the apparatus for manufacturing the glass fleece
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/593—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives to layered webs
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/64—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
    • D04H1/655—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions characterised by the apparatus for applying bonding agents
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H13/00—Other non-woven fabrics

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nonwoven Fabrics (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Inorganic Fibers (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Paper (AREA)
  • Reinforced Plastic Materials (AREA)
  • Glass Compositions (AREA)
  • Crushing And Grinding (AREA)
  • Laminated Bodies (AREA)

Abstract

Process for producing mineral fibreboard comprises a fleece of greater than twice the finished product thickness (2 t) being compressed (17) to a first thickness of 0.8-1.5 (preferably 0.9-1.3) t without longitudinal compression to a weight per unit area of W. The fleece is then longitudinally compressed by roller systems (30,32) without pleating to a unit weight of 2-10 W and a thickness of 1-1.3 and preferably 1-1.1 t. The fleece is then tightly held and fed to a bonding oven (25).
DK01102183T 1996-03-25 1997-03-24 Method and apparatus for making a plate of mineral fibers DK1111113T3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH00768/96A CH691816A5 (en) 1996-03-25 1996-03-25 Process and apparatus for producing mineral fibreboard
CH216796 1996-09-02
CH02169/96A CH691960A5 (en) 1996-09-02 1996-09-02 Process and apparatus for producing mineral fibreboard
PCT/EP1997/001490 WO1997036035A1 (en) 1996-03-25 1997-03-24 Process and apparatus for the production of a mineral fibreboard

Publications (1)

Publication Number Publication Date
DK1111113T3 true DK1111113T3 (en) 2008-09-15

Family

ID=27172403

Family Applications (1)

Application Number Title Priority Date Filing Date
DK01102183T DK1111113T3 (en) 1996-03-25 1997-03-24 Method and apparatus for making a plate of mineral fibers

Country Status (14)

Country Link
EP (3) EP0889981B1 (en)
AT (2) ATE395452T1 (en)
AU (1) AU2159897A (en)
BA (1) BA98344A (en)
CZ (2) CZ291481B6 (en)
DE (2) DE69738694D1 (en)
DK (1) DK1111113T3 (en)
EA (1) EA000493B1 (en)
ES (2) ES2166530T3 (en)
HU (2) HU223013B1 (en)
PL (2) PL184688B1 (en)
SI (2) SI0889981T1 (en)
SK (2) SK283915B6 (en)
WO (1) WO1997036035A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0889981B1 (en) 1996-03-25 2001-11-28 Rockwool International A/S Process and apparatus for the production of a mineral fibreboard
DE19860040A1 (en) * 1998-12-23 2000-06-29 Gruenzweig & Hartmann Process for the production of mineral wool products bound with binder, device for carrying them out, mineral wool product produced thereby and composite mineral wool product produced thereby and use of these products
WO2003018933A1 (en) * 2001-08-23 2003-03-06 Deutsche Rockwool Mineralwoll Gmbh & Co. Ohg Method for the production of an absorber element from mineral wool
SI1456444T2 (en) * 2001-12-21 2014-04-30 Rockwool International A/S Mineral fibre batts and their production
ATE446402T1 (en) * 2001-12-21 2009-11-15 Rockwool Int FIBERGLASS MATS
DE10257977A1 (en) * 2002-12-12 2004-07-01 Rheinhold & Mahla Ag Space limiting panel
FR2854626B1 (en) * 2003-05-07 2006-12-15 Saint Gobain Isover MINERAL FIBER-BASED PRODUCT AND FIBER OBTAINING DEVICE
WO2005035459A1 (en) 2003-10-06 2005-04-21 Saint-Gobain Isover Fire-proof door and fire-proof insert therefor
DE10359902A1 (en) * 2003-12-19 2005-07-21 Saint-Gobain Isover G+H Ag Manufacture of web of mineral wool, e.g. for heat insulation, involves opening a primary web and recombining it to form the final web
SI1743076T1 (en) * 2004-04-02 2013-03-29 Rockwool International A/S Acoustic elements and their production
EP1645698A1 (en) 2004-10-05 2006-04-12 Rockwool International A/S A roof structure
EP1826335A1 (en) 2006-02-28 2007-08-29 Rockwool International A/S Insulated façade system
EP2100992A1 (en) * 2008-03-12 2009-09-16 Paroc Oy Ab Method and arrangement for improving the runnability of a continuous mineral fibre web
EP2180104A1 (en) 2008-10-21 2010-04-28 Rockwool International A/S Facade insulation system
EP2281961A1 (en) 2009-06-25 2011-02-09 Knauf Insulation Technology GmbH Aerogel containing composite materials
BR112013001630A2 (en) 2010-07-23 2016-05-24 Rockwool Internat product of bonded mineral fibers having high resistance to fire and exothermic decomposition at elevated temperatures.
CA2820559C (en) 2010-12-06 2019-11-12 Rockwool International A/S Method of reducing the formaldehyde emission of a mineral fibre product, and mineral fibre product with reduced formaldehyde emission
EA027765B1 (en) 2011-05-17 2017-08-31 Роквул Интернэшнл А/С Growth substrate products and their use
CN108589029B (en) 2011-09-30 2021-03-12 欧文斯科宁知识产权资产有限公司 Layered pack of glass fibers and method of forming same
GB201121252D0 (en) * 2011-12-12 2012-01-18 Knauf Insulation Doo Skofa Loka Mineral wool panel
CN102677446A (en) * 2012-05-14 2012-09-19 陈浩 Rock/mineral wool pleating device
PL2931955T3 (en) 2012-12-11 2017-04-28 Rockwool International A/S A method of forming a cured mineral fibre product
WO2016131831A1 (en) * 2015-02-16 2016-08-25 Rockwool International A/S Method of compressing man-made vitreous fibre web
EP3564423B2 (en) 2018-04-30 2023-07-12 Betek Boya ve Kimya Sanayi A.S. Process for the manufacture of mineral wool panels made of two or more layers having different densities
CN114836904B (en) * 2022-04-26 2023-11-03 大连华阳新材料科技股份有限公司 System for automatically adjusting uniformity of two sides of formed web and adjusting method thereof
CN119460525B (en) * 2024-12-20 2025-04-18 南京海瑞保温材料有限公司 A pre-pressing device and method for rock wool production

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1635620A1 (en) 1966-09-16 1971-03-25 Reichhold Albert Chemie Ag Improved continuously produced fibrous sheet from natural, synthetic and / or mineral fibers and processes for their production
CA1057183A (en) 1976-05-06 1979-06-26 Malcolm J. Stagg Method and apparatus for producing multiple density fibrous product
FR2548695B1 (en) * 1983-07-07 1986-06-20 Saint Gobain Isover FORMATION OF FELTS WITH ISOTROPIC STRUCTURE
CA1340751C (en) 1984-07-03 1999-09-21 William T. Fletcher Apparatus for producing reoriented glass fibre material
DK155163B (en) * 1986-06-30 1989-02-20 Rockwool Int PROCEDURE FOR CONTINUOUS PRODUCTION OF MINERAL WOOLS
DE3701592A1 (en) * 1987-01-21 1988-08-04 Rockwool Mineralwolle METHOD FOR CONTINUOUSLY PRODUCING A FIBER INSULATION SHEET AND DEVICE FOR IMPLEMENTING THE METHOD
CA2032229C (en) * 1989-12-19 2001-10-16 Paolo Baracchini Thermal insulating mat made of radom oriented mineral fibres
FI85034C (en) 1990-03-26 1992-02-25 Partek Ab Method and apparatus for treating a mineral fiber web
DK165926B (en) * 1990-12-07 1993-02-08 Rockwool Int PROCEDURE FOR THE MANUFACTURE OF INSULATION PLATES COMPOSED BY INVOLVED CONNECTED STABLE MINERAL FIBER ELEMENTS
WO1992013150A1 (en) * 1991-01-28 1992-08-06 Rockwool International A/S Process for the manufacture of mineral-fibre plates capable of acting as plaster substrates, a device for carrying out the process, and mineral-fibre plate manufactured by the process
DE9117005U1 (en) * 1991-02-01 1995-02-02 Heraklith Baustoffe AG, Fürnitz Mineral fiber board and device for its manufacture
DK3793D0 (en) 1993-01-14 1993-01-14 Rockwool Int A METHOD OF PRODUCING A MINERAL FIBER INSULATING WEB A PLANT FOR PRODUCING A MINERAL WEB, AND A MINERAL FIBER INSULATED PLATE
DK3593D0 (en) * 1993-01-14 1993-01-14 Rockwool Int A METHOD FOR PRODUCING A MINERAL FIBER INSULATING WEB, A PLANT FOR PRODUCING A MINERAL FIBER INSULATING WEB, AND A MINERAL FIBER INSULATED PLATE
EP0889981B1 (en) 1996-03-25 2001-11-28 Rockwool International A/S Process and apparatus for the production of a mineral fibreboard

Also Published As

Publication number Publication date
EA000493B1 (en) 1999-08-26
SK12862001A3 (en) 2002-01-07
EP0889981B1 (en) 2001-11-28
PL329169A1 (en) 1999-03-15
EP1111113A2 (en) 2001-06-27
EP1111113A3 (en) 2003-09-03
HU225208B1 (en) 2006-08-28
WO1997036035A1 (en) 1997-10-02
EP1942217A3 (en) 2008-11-05
EP1111113B1 (en) 2008-05-14
ES2306679T3 (en) 2008-11-16
EP0889981A1 (en) 1999-01-13
EP1942217A2 (en) 2008-07-09
SI0889981T1 (en) 2002-06-30
HU0200479D0 (en) 2002-04-29
DE69738694D1 (en) 2008-06-26
EA199800855A1 (en) 1999-04-29
PL184688B1 (en) 2002-11-29
ATE209715T1 (en) 2001-12-15
AU2159897A (en) 1997-10-17
BA98344A (en) 2001-09-14
CZ302498A3 (en) 1999-09-15
DE69708613D1 (en) 2002-01-10
PL186337B1 (en) 2003-12-31
HUP0001326A3 (en) 2000-10-30
HUP0001326A2 (en) 2000-08-28
SK127998A3 (en) 1999-05-07
HU223013B1 (en) 2004-03-01
ATE395452T1 (en) 2008-05-15
CZ291481B6 (en) 2003-03-12
SI1111113T1 (en) 2008-12-31
ES2166530T3 (en) 2002-04-16
DE69708613T2 (en) 2002-08-01
SK286867B6 (en) 2009-06-05
CZ291473B6 (en) 2003-03-12
SK283915B6 (en) 2004-05-04

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