FR2122343B1 - - Google Patents

Info

Publication number
FR2122343B1
FR2122343B1 FR7102008A FR7102008A FR2122343B1 FR 2122343 B1 FR2122343 B1 FR 2122343B1 FR 7102008 A FR7102008 A FR 7102008A FR 7102008 A FR7102008 A FR 7102008A FR 2122343 B1 FR2122343 B1 FR 2122343B1
Authority
FR
France
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
FR7102008A
Other languages
French (fr)
Other versions
FR2122343A1 (no
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.)
Scott Technologies Inc
Original Assignee
ATO Inc
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 ATO Inc filed Critical ATO Inc
Priority to FR7102008A priority Critical patent/FR2122343B1/fr
Publication of FR2122343A1 publication Critical patent/FR2122343A1/fr
Application granted granted Critical
Publication of FR2122343B1 publication Critical patent/FR2122343B1/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)
FR7102008A 1971-01-21 1971-01-21 Expired FR2122343B1 (no)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7102008A FR2122343B1 (no) 1971-01-21 1971-01-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7102008A FR2122343B1 (no) 1971-01-21 1971-01-21

Publications (2)

Publication Number Publication Date
FR2122343A1 FR2122343A1 (no) 1972-09-01
FR2122343B1 true FR2122343B1 (no) 1975-02-21

Family

ID=9070660

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7102008A Expired FR2122343B1 (no) 1971-01-21 1971-01-21

Country Status (1)

Country Link
FR (1) FR2122343B1 (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622719A1 (fr) * 1987-10-30 1989-05-05 Philippe Francois Detecteur differentiel de pression acoustique

Also Published As

Publication number Publication date
FR2122343A1 (no) 1972-09-01

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Legal Events

Date Code Title Description
ST Notification of lapse