FR2326749A1 - SURVEILLANCE EQUIPMENT ENSURING THE PROTECTION OF A CONFINED SPACE - Google Patents

SURVEILLANCE EQUIPMENT ENSURING THE PROTECTION OF A CONFINED SPACE

Info

Publication number
FR2326749A1
FR2326749A1 FR7627447A FR7627447A FR2326749A1 FR 2326749 A1 FR2326749 A1 FR 2326749A1 FR 7627447 A FR7627447 A FR 7627447A FR 7627447 A FR7627447 A FR 7627447A FR 2326749 A1 FR2326749 A1 FR 2326749A1
Authority
FR
France
Prior art keywords
protection
confined space
surveillance equipment
equipment ensuring
ensuring
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.)
Granted
Application number
FR7627447A
Other languages
French (fr)
Other versions
FR2326749B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2326749A1 publication Critical patent/FR2326749A1/en
Application granted granted Critical
Publication of FR2326749B1 publication Critical patent/FR2326749B1/fr
Granted 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
    • G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
  • Emergency Alarm Devices (AREA)
FR7627447A 1975-09-30 1976-09-13 SURVEILLANCE EQUIPMENT ENSURING THE PROTECTION OF A CONFINED SPACE Granted FR2326749A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1268675A CH595668A5 (en) 1975-09-30 1975-09-30

Publications (2)

Publication Number Publication Date
FR2326749A1 true FR2326749A1 (en) 1977-04-29
FR2326749B1 FR2326749B1 (en) 1981-09-25

Family

ID=4385455

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7627447A Granted FR2326749A1 (en) 1975-09-30 1976-09-13 SURVEILLANCE EQUIPMENT ENSURING THE PROTECTION OF A CONFINED SPACE

Country Status (15)

Country Link
JP (1) JPS5243398A (en)
AT (1) AT357066B (en)
BE (1) BE846153A (en)
BR (1) BR7606514A (en)
CH (1) CH595668A5 (en)
DE (1) DE2641856A1 (en)
DK (1) DK437176A (en)
ES (1) ES451130A1 (en)
FI (1) FI762481A (en)
FR (1) FR2326749A1 (en)
GB (1) GB1554880A (en)
NL (1) NL7609139A (en)
NO (1) NO762694L (en)
SE (1) SE7608698L (en)
ZA (1) ZA764670B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4608674A (en) * 1982-08-06 1986-08-26 American District Telegraph Company Constant range ultrasonic motion detector
CH702416A2 (en) * 2009-12-21 2011-06-30 Glasfreunde Gmbh Means for the detection of glass damage during glazing.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721972A (en) * 1972-02-22 1973-03-20 Seabord Electric Ultrasonic burglar alarm system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721972A (en) * 1972-02-22 1973-03-20 Seabord Electric Ultrasonic burglar alarm system

Also Published As

Publication number Publication date
ATA694276A (en) 1979-10-15
FR2326749B1 (en) 1981-09-25
BE846153A (en) 1976-12-31
GB1554880A (en) 1979-10-31
SE7608698L (en) 1977-03-31
AU1659376A (en) 1978-02-09
FI762481A (en) 1977-03-31
NO762694L (en) 1977-03-31
BR7606514A (en) 1977-06-28
DK437176A (en) 1977-03-31
JPS5243398A (en) 1977-04-05
CH595668A5 (en) 1978-02-15
ZA764670B (en) 1977-07-27
ES451130A1 (en) 1977-08-16
AT357066B (en) 1980-06-10
DE2641856A1 (en) 1977-04-07
NL7609139A (en) 1977-04-01

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Legal Events

Date Code Title Description
ST Notification of lapse