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AU476955B2 - Alarm systems - Google Patents
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AU476955B2 - Alarm systems - Google Patents

Alarm systems

Info

Publication number
AU476955B2
AU476955B2 AU62572/73A AU6257273A AU476955B2 AU 476955 B2 AU476955 B2 AU 476955B2 AU 62572/73 A AU62572/73 A AU 62572/73A AU 6257273 A AU6257273 A AU 6257273A AU 476955 B2 AU476955 B2 AU 476955B2
Authority
AU
Australia
Prior art keywords
alarm systems
alarm
systems
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
AU62572/73A
Other versions
AU6257273A (en
Inventor
LESLIE REDFERN and PETER JOHN BARBER DENIS
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.)
Wormald International Ltd
Original Assignee
Wormald International 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 Wormald International Ltd filed Critical Wormald International Ltd
Application granted granted Critical
Publication of AU6257273A publication Critical patent/AU6257273A/en
Publication of AU476955B2 publication Critical patent/AU476955B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/006—Alarm systems in which substations are interrogated in succession by a central station with substations connected to an individual line, e.g. star configuration

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
AU62572/73A 1972-12-20 1972-11-20 Alarm systems Expired AU476955B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPB128872 1972-12-20

Publications (2)

Publication Number Publication Date
AU6257273A AU6257273A (en) 1975-05-15
AU476955B2 true AU476955B2 (en) 1975-05-15

Family

ID=3765499

Family Applications (1)

Application Number Title Priority Date Filing Date
AU62572/73A Expired AU476955B2 (en) 1972-12-20 1972-11-20 Alarm systems

Country Status (2)

Country Link
AU (1) AU476955B2 (en)
GB (1) GB1448028A (en)

Also Published As

Publication number Publication date
AU6257273A (en) 1975-05-15
GB1448028A (en) 1976-09-02

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