FR828567A - Improvements to automatic burglar alarms, fire alarms and the like - Google Patents

Improvements to automatic burglar alarms, fire alarms and the like

Info

Publication number
FR828567A
FR828567A FR828567DA FR828567A FR 828567 A FR828567 A FR 828567A FR 828567D A FR828567D A FR 828567DA FR 828567 A FR828567 A FR 828567A
Authority
FR
France
Prior art keywords
alarms
fire
automatic burglar
automatic
fire alarms
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
Edred Rabjohn Mountstephen
William John Wood
Alexander George Spence
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 FR828567A publication Critical patent/FR828567A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
    • G08B19/005—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow combined burglary and fire alarm systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR828567D 1936-11-04 1937-10-30 Improvements to automatic burglar alarms, fire alarms and the like Expired FR828567A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB828567X 1936-11-04

Publications (1)

Publication Number Publication Date
FR828567A true FR828567A (en) 1938-05-20

Family

ID=10535715

Family Applications (1)

Application Number Title Priority Date Filing Date
FR828567D Expired FR828567A (en) 1936-11-04 1937-10-30 Improvements to automatic burglar alarms, fire alarms and the like

Country Status (1)

Country Link
FR (1) FR828567A (en)

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