FR865708A - Improvements to fire detectors - Google Patents

Improvements to fire detectors

Info

Publication number
FR865708A
FR865708A FR865708DA FR865708A FR 865708 A FR865708 A FR 865708A FR 865708D A FR865708D A FR 865708DA FR 865708 A FR865708 A FR 865708A
Authority
FR
France
Prior art keywords
fire detectors
detectors
fire
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)
Inventor
Maurice Echard
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 FR865708A publication Critical patent/FR865708A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/04—Hydraulic or pneumatic actuation of the alarm, e.g. by change of fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • General Physics & Mathematics (AREA)
FR865708D 1940-02-06 1940-02-06 Improvements to fire detectors Expired FR865708A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR865708T 1940-02-06

Publications (1)

Publication Number Publication Date
FR865708A true FR865708A (en) 1941-05-31

Family

ID=9344516

Family Applications (1)

Application Number Title Priority Date Filing Date
FR865708D Expired FR865708A (en) 1940-02-06 1940-02-06 Improvements to fire detectors

Country Status (1)

Country Link
FR (1) FR865708A (en)

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