FR949138A - Dispositif anti-vol - Google Patents

Dispositif anti-vol

Info

Publication number
FR949138A
FR949138A FR949138DA FR949138A FR 949138 A FR949138 A FR 949138A FR 949138D A FR949138D A FR 949138DA FR 949138 A FR949138 A FR 949138A
Authority
FR
France
Prior art keywords
theft device
theft
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
Application number
Other languages
English (en)
Inventor
Vladimir J Stepowski
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 filed Critical
Application granted granted Critical
Publication of FR949138A publication Critical patent/FR949138A/fr
Expired legal-status Critical Current

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
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
    • G08B13/1672—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using sonic detecting means, e.g. a microphone operating in the audio frequency range

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR949138D 1947-06-28 1947-06-28 Dispositif anti-vol Expired FR949138A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR949138T 1947-06-28

Publications (1)

Publication Number Publication Date
FR949138A true FR949138A (fr) 1949-08-22

Family

ID=9474392

Family Applications (1)

Application Number Title Priority Date Filing Date
FR949138D Expired FR949138A (fr) 1947-06-28 1947-06-28 Dispositif anti-vol

Country Status (1)

Country Link
FR (1) FR949138A (fr)

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