FR1472226A - Improvements to alarm systems - Google Patents

Improvements to alarm systems

Info

Publication number
FR1472226A
FR1472226A FR47383A FR47383A FR1472226A FR 1472226 A FR1472226 A FR 1472226A FR 47383 A FR47383 A FR 47383A FR 47383 A FR47383 A FR 47383A FR 1472226 A FR1472226 A FR 1472226A
Authority
FR
France
Prior art keywords
alarm systems
alarm
systems
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
FR47383A
Other languages
French (fr)
Inventor
Meier Donner
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.)
D'ETUDES RECHERCHES ET CONSTRUCTIONS ELECTRONIQUES Ste
Original Assignee
D'ETUDES RECHERCHES ET CONSTRUCTIONS ELECTRONIQUES Ste
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 D'ETUDES RECHERCHES ET CONSTRUCTIONS ELECTRONIQUES Ste filed Critical D'ETUDES RECHERCHES ET CONSTRUCTIONS ELECTRONIQUES Ste
Priority to FR47383A priority Critical patent/FR1472226A/en
Application granted granted Critical
Publication of FR1472226A publication Critical patent/FR1472226A/en
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
    • G08B13/1663—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems using seismic sensing means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR47383A 1966-01-27 1966-01-27 Improvements to alarm systems Expired FR1472226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR47383A FR1472226A (en) 1966-01-27 1966-01-27 Improvements to alarm systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR47383A FR1472226A (en) 1966-01-27 1966-01-27 Improvements to alarm systems

Publications (1)

Publication Number Publication Date
FR1472226A true FR1472226A (en) 1967-03-10

Family

ID=8599847

Family Applications (1)

Application Number Title Priority Date Filing Date
FR47383A Expired FR1472226A (en) 1966-01-27 1966-01-27 Improvements to alarm systems

Country Status (1)

Country Link
FR (1) FR1472226A (en)

Similar Documents

Publication Publication Date Title
FR1495797A (en) Improvements to display systems
FR1519160A (en) Improvements to conveyor systems
FR1542729A (en) Improvements in spraying systems
FR1415096A (en) Improvements to recording systems
FR1512885A (en) Multiple alarm system
FR1435022A (en) Improvements to telecommunications systems
FR1517578A (en) Improvements to hydrostatic extrusion systems
FR1429786A (en) Improvements to alarm systems
FR1472226A (en) Improvements to alarm systems
FR1546633A (en) Improvements made to tuning systems
FR1400757A (en) Improvements to alarm systems
FR90671E (en) Improvements to radio-localization systems
FR1386484A (en) Improvements to radio-localization systems
FR1505907A (en) Refinements to winding systems
FR1482122A (en) Improvements to electronic recording systems
FR1489743A (en) Improvements to radio-localization systems
FR1452094A (en) Improvements to selective antenna systems
FR1381866A (en) Improvements to coupling systems
FR1496441A (en) Improvements to telephone systems
FR1479359A (en) Improvements to stackable locker systems
FR1519832A (en) Improvements to vehicle identification systems
FR1532708A (en) Improvements to telephone systems
FR1532156A (en) Improvements to telephone systems
FR1511871A (en) Improvements to telephone systems
FR1509710A (en) Improvements to telephone systems