FR831893A - Improvements to automatic fire alarms or similar devices - Google Patents

Improvements to automatic fire alarms or similar devices

Info

Publication number
FR831893A
FR831893A FR831893DA FR831893A FR 831893 A FR831893 A FR 831893A FR 831893D A FR831893D A FR 831893DA FR 831893 A FR831893 A FR 831893A
Authority
FR
France
Prior art keywords
similar devices
automatic fire
fire alarms
alarms
automatic
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
French (fr)
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.)
Compagnie des Telephones Thomson Houston
Original Assignee
Compagnie des Telephones Thomson Houston
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 Compagnie des Telephones Thomson Houston filed Critical Compagnie des Telephones Thomson Houston
Application granted granted Critical
Publication of FR831893A publication Critical patent/FR831893A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/04—Systems for signalling characterised solely by the form of transmission of the signal using hydraulic transmission; using pneumatic transmission
FR831893D 1937-04-21 1937-04-21 Improvements to automatic fire alarms or similar devices Expired FR831893A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR831893T 1937-04-21

Publications (1)

Publication Number Publication Date
FR831893A true FR831893A (en) 1938-09-15

Family

ID=9294585

Family Applications (1)

Application Number Title Priority Date Filing Date
FR831893D Expired FR831893A (en) 1937-04-21 1937-04-21 Improvements to automatic fire alarms or similar devices

Country Status (1)

Country Link
FR (1) FR831893A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000044A1 (en) * 1978-06-06 1980-01-10 Multisafe Ag Conduits protected against sabotage,for security installations and installation thereof within a protection network
FR2575570A1 (en) * 1984-12-27 1986-07-04 Dudognon Pecqueur Eric Device for pneumatic control of passage applied especially to anti-theft protection of vehicles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980000044A1 (en) * 1978-06-06 1980-01-10 Multisafe Ag Conduits protected against sabotage,for security installations and installation thereof within a protection network
FR2575570A1 (en) * 1984-12-27 1986-07-04 Dudognon Pecqueur Eric Device for pneumatic control of passage applied especially to anti-theft protection of vehicles

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