GB2030336B - Emergnecy alarm systems - Google Patents

Emergnecy alarm systems

Info

Publication number
GB2030336B
GB2030336B GB7930958A GB7930958A GB2030336B GB 2030336 B GB2030336 B GB 2030336B GB 7930958 A GB7930958 A GB 7930958A GB 7930958 A GB7930958 A GB 7930958A GB 2030336 B GB2030336 B GB 2030336B
Authority
GB
United Kingdom
Prior art keywords
emergnecy
alarm systems
alarm
systems
emergnecy alarm
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
GB7930958A
Other versions
GB2030336A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AVALON AUDIO COMMUNICATIONS LT
WOLSEY EMERGENCY AUDIO COMMUNI
Original Assignee
AVALON AUDIO COMMUNICATIONS LT
WOLSEY EMERGENCY AUDIO COMMUNI
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 AVALON AUDIO COMMUNICATIONS LT, WOLSEY EMERGENCY AUDIO COMMUNI filed Critical AVALON AUDIO COMMUNICATIONS LT
Priority to GB7930958A priority Critical patent/GB2030336B/en
Publication of GB2030336A publication Critical patent/GB2030336A/en
Application granted granted Critical
Publication of GB2030336B publication Critical patent/GB2030336B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
GB7930958A 1978-09-06 1979-09-06 Emergnecy alarm systems Expired GB2030336B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7930958A GB2030336B (en) 1978-09-06 1979-09-06 Emergnecy alarm systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7835800 1978-09-06
GB7930958A GB2030336B (en) 1978-09-06 1979-09-06 Emergnecy alarm systems

Publications (2)

Publication Number Publication Date
GB2030336A GB2030336A (en) 1980-04-02
GB2030336B true GB2030336B (en) 1982-11-10

Family

ID=26268765

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7930958A Expired GB2030336B (en) 1978-09-06 1979-09-06 Emergnecy alarm systems

Country Status (1)

Country Link
GB (1) GB2030336B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2710281C2 (en) * 2017-12-27 2019-12-25 Общество с ограниченной ответственностью "Элеста" Security alarm device

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS585896A (en) * 1981-07-02 1983-01-13 能美防災工業株式会社 Fire alarm facility
JPS61177841A (en) * 1985-02-04 1986-08-09 Mitsubishi Electric Corp Series transmitting device
GB8910637D0 (en) * 1989-05-09 1989-06-21 Target Ind Limited Improvements relating to monitoring systems
DE29621921U1 (en) * 1996-12-17 1997-02-13 Alcatel Alsthom Compagnie Générale d'Electricité, Paris Smoke or fire alarm device
DE502005001967D1 (en) * 2005-03-15 2007-12-27 Siemens Schweiz Ag Method for determining the configuration of a hazard detection system and hazard alarm system
ES2384146A1 (en) * 2010-02-02 2012-07-02 General Electric Company Detection circuit, detection system, and method of assembling a detection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2710281C2 (en) * 2017-12-27 2019-12-25 Общество с ограниченной ответственностью "Элеста" Security alarm device

Also Published As

Publication number Publication date
GB2030336A (en) 1980-04-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940906