CH328283A - Fire alarm - Google Patents

Fire alarm

Info

Publication number
CH328283A
CH328283A CH328283DA CH328283A CH 328283 A CH328283 A CH 328283A CH 328283D A CH328283D A CH 328283DA CH 328283 A CH328283 A CH 328283A
Authority
CH
Switzerland
Prior art keywords
fire alarm
alarm
fire
Prior art date
Application number
Other languages
French (fr)
Inventor
Thomas Ward Lawrence
Original Assignee
Thomas Ward Lawrence
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 Thomas Ward Lawrence filed Critical Thomas Ward Lawrence
Publication of CH328283A publication Critical patent/CH328283A/en

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)
CH328283D 1954-08-16 1955-02-03 Fire alarm CH328283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US328283XA 1954-08-16 1954-08-16

Publications (1)

Publication Number Publication Date
CH328283A true CH328283A (en) 1958-02-28

Family

ID=21867033

Family Applications (1)

Application Number Title Priority Date Filing Date
CH328283D CH328283A (en) 1954-08-16 1955-02-03 Fire alarm

Country Status (1)

Country Link
CH (1) CH328283A (en)

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