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CH534932A - Protection arrangement for at least one shop window or at least one showcase - Google Patents

Protection arrangement for at least one shop window or at least one showcase

Info

Publication number
CH534932A
CH534932A CH1769171A CH1769171A CH534932A CH 534932 A CH534932 A CH 534932A CH 1769171 A CH1769171 A CH 1769171A CH 1769171 A CH1769171 A CH 1769171A CH 534932 A CH534932 A CH 534932A
Authority
CH
Switzerland
Prior art keywords
showcase
protection arrangement
shop window
shop
window
Prior art date
Application number
CH1769171A
Other languages
German (de)
Inventor
Miloslav Dipl Ing Novotny
Original Assignee
Cerberus Ag Werk Fuer Elektron
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 Cerberus Ag Werk Fuer Elektron filed Critical Cerberus Ag Werk Fuer Elektron
Priority to CH1769171A priority Critical patent/CH534932A/en
Priority to DE19722255250 priority patent/DE2255250A1/en
Publication of CH534932A publication Critical patent/CH534932A/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
    • G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
    • G08B13/1627—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means using Doppler shift detection circuits

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
CH1769171A 1971-12-03 1971-12-03 Protection arrangement for at least one shop window or at least one showcase CH534932A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH1769171A CH534932A (en) 1971-12-03 1971-12-03 Protection arrangement for at least one shop window or at least one showcase
DE19722255250 DE2255250A1 (en) 1971-12-03 1972-11-10 ARRANGEMENT FOR PROTECTING SHOWCASES, SHOP WINDOWS AND DISPLAY CASES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1769171A CH534932A (en) 1971-12-03 1971-12-03 Protection arrangement for at least one shop window or at least one showcase

Publications (1)

Publication Number Publication Date
CH534932A true CH534932A (en) 1973-03-15

Family

ID=4427356

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1769171A CH534932A (en) 1971-12-03 1971-12-03 Protection arrangement for at least one shop window or at least one showcase

Country Status (2)

Country Link
CH (1) CH534932A (en)
DE (1) DE2255250A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641017A1 (en) * 1975-09-13 1977-03-17 Matsushita Electric Works Ltd ULTRASONIC ALARM SYSTEM FOR MOVING OBJECTS
DE3138723A1 (en) * 1981-09-29 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Echo signal evaluating method for intrusion protection in accordance with the ultrasonic Doppler method and circuit arrangement for carrying out this method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2331848A1 (en) * 1975-11-14 1977-06-10 Anvar Glass wall or window surveillance system - has ultra sonic transmitter and receiver placed in opposite corners of glass window
EP2127966B1 (en) 2008-05-30 2012-05-30 Delphi Technologies, Inc. Method and system for passenger compartment monitoring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2641017A1 (en) * 1975-09-13 1977-03-17 Matsushita Electric Works Ltd ULTRASONIC ALARM SYSTEM FOR MOVING OBJECTS
DE3138723A1 (en) * 1981-09-29 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Echo signal evaluating method for intrusion protection in accordance with the ultrasonic Doppler method and circuit arrangement for carrying out this method

Also Published As

Publication number Publication date
DE2255250A1 (en) 1973-06-07

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Legal Events

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