FR780613A - Improvements to electric fire alarms - Google Patents

Improvements to electric fire alarms

Info

Publication number
FR780613A
FR780613A FR780613DA FR780613A FR 780613 A FR780613 A FR 780613A FR 780613D A FR780613D A FR 780613DA FR 780613 A FR780613 A FR 780613A
Authority
FR
France
Prior art keywords
electric fire
fire alarms
alarms
electric
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
Mario Ferre
Francesco Ghiara
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 FR780613A publication Critical patent/FR780613A/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
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR780613D 1934-10-30 1934-10-30 Improvements to electric fire alarms Expired FR780613A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR780613T 1934-10-30

Publications (1)

Publication Number Publication Date
FR780613A true FR780613A (en) 1935-04-29

Family

ID=9205314

Family Applications (1)

Application Number Title Priority Date Filing Date
FR780613D Expired FR780613A (en) 1934-10-30 1934-10-30 Improvements to electric fire alarms

Country Status (1)

Country Link
FR (1) FR780613A (en)

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