ZA714690B - Electric alarm systems - Google Patents

Electric alarm systems

Info

Publication number
ZA714690B
ZA714690B ZA714690A ZA714690A ZA714690B ZA 714690 B ZA714690 B ZA 714690B ZA 714690 A ZA714690 A ZA 714690A ZA 714690 A ZA714690 A ZA 714690A ZA 714690 B ZA714690 B ZA 714690B
Authority
ZA
South Africa
Prior art keywords
alarm systems
electric alarm
electric
systems
alarm
Prior art date
Application number
ZA714690A
Inventor
R Minter
B Jones
Original Assignee
Bardic Systems Ltd
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 Bardic Systems Ltd filed Critical Bardic Systems Ltd
Publication of ZA714690B publication Critical patent/ZA714690B/en

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Burglar Alarm Systems (AREA)
ZA714690A 1970-07-16 1971-07-15 Electric alarm systems ZA714690B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3454570 1970-07-16

Publications (1)

Publication Number Publication Date
ZA714690B true ZA714690B (en) 1973-02-28

Family

ID=10366948

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA714690A ZA714690B (en) 1970-07-16 1971-07-15 Electric alarm systems

Country Status (3)

Country Link
AU (1) AU469354B2 (en)
GB (1) GB1351748A (en)
ZA (1) ZA714690B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389949B1 (en) * 1977-05-04 1981-06-12 Klaxon Sa
US4282519A (en) * 1977-10-06 1981-08-04 Honeywell Inc. Interconnection of alarms of smoke detectors with distinguishable alarms
US4176346A (en) * 1977-11-21 1979-11-27 John O. Stapleton Smoke alarm network
DE2752959A1 (en) * 1977-11-28 1979-05-31 Walter Holzer WARNING AND ALARM SYSTEM
US4194192A (en) * 1978-12-11 1980-03-18 General Electric Company Alarm devices for interconnected multi-device systems
SE423317B (en) * 1979-06-13 1982-05-03 Bofors Ab SET AND DEVICE FOR DISPLACING THE SPRINKLER MENZES
US5200734A (en) * 1992-01-06 1993-04-06 Lin Tieng Fu Detecting and alarming system for detecting shortcircuited or broken circuit
CN115171325B (en) * 2022-06-30 2024-05-14 帝森克罗德集团有限公司 Automatic alarm electric fire extinguishing controller

Also Published As

Publication number Publication date
GB1351748A (en) 1974-05-01
AU469354B2 (en) 1976-02-12
AU3123571A (en) 1973-01-18

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