GB2038061B - Event indication and indication system - Google Patents

Event indication and indication system

Info

Publication number
GB2038061B
GB2038061B GB7941404A GB7941404A GB2038061B GB 2038061 B GB2038061 B GB 2038061B GB 7941404 A GB7941404 A GB 7941404A GB 7941404 A GB7941404 A GB 7941404A GB 2038061 B GB2038061 B GB 2038061B
Authority
GB
United Kingdom
Prior art keywords
indication
event
indication system
event indication
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
GB7941404A
Other versions
GB2038061A (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.)
TORBRIDGE INVESTMENTS Ltd
Original Assignee
TORBRIDGE INVESTMENTS 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 TORBRIDGE INVESTMENTS Ltd filed Critical TORBRIDGE INVESTMENTS Ltd
Priority to GB7941404A priority Critical patent/GB2038061B/en
Publication of GB2038061A publication Critical patent/GB2038061A/en
Application granted granted Critical
Publication of GB2038061B publication Critical patent/GB2038061B/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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/08—Mechanical actuation by opening, e.g. of door, of window, of drawer, of shutter, of curtain, of blind
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Burglar Alarm Systems (AREA)
GB7941404A 1978-12-01 1979-11-30 Event indication and indication system Expired GB2038061B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7941404A GB2038061B (en) 1978-12-01 1979-11-30 Event indication and indication system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7846800 1978-12-01
GB7941404A GB2038061B (en) 1978-12-01 1979-11-30 Event indication and indication system

Publications (2)

Publication Number Publication Date
GB2038061A GB2038061A (en) 1980-07-16
GB2038061B true GB2038061B (en) 1983-01-19

Family

ID=26269818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7941404A Expired GB2038061B (en) 1978-12-01 1979-11-30 Event indication and indication system

Country Status (1)

Country Link
GB (1) GB2038061B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625198A (en) * 1984-08-14 1986-11-25 Self Diagnostic Security Devices, Inc. Alarm system diagnostic apparatus
US4849734A (en) * 1987-08-17 1989-07-18 Self Diagnostic Security Devices, Inc. Self-diagnostic circuit for alarm-systems
GB2217888A (en) * 1988-04-30 1989-11-01 Andrew Murrell Locally sited intruder alarm signal and fault indicator unit

Also Published As

Publication number Publication date
GB2038061A (en) 1980-07-16

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Legal Events

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