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AU534669B2 - Alarm system - Google Patents
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AU534669B2 - Alarm system - Google Patents

Alarm system

Info

Publication number
AU534669B2
AU534669B2 AU76634/81A AU7663481A AU534669B2 AU 534669 B2 AU534669 B2 AU 534669B2 AU 76634/81 A AU76634/81 A AU 76634/81A AU 7663481 A AU7663481 A AU 7663481A AU 534669 B2 AU534669 B2 AU 534669B2
Authority
AU
Australia
Prior art keywords
alarm system
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.)
Ceased
Application number
AU76634/81A
Other versions
AU7663481A (en
Inventor
Bernardus Johannes Bout
Nicolaas Tjaart Van Der Walt
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.)
Anglo American Corp of South Africa Pty Ltd
Original Assignee
Anglo American Corp of South Africa Pty 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 Anglo American Corp of South Africa Pty Ltd filed Critical Anglo American Corp of South Africa Pty Ltd
Priority to AU76634/81A priority Critical patent/AU534669B2/en
Publication of AU7663481A publication Critical patent/AU7663481A/en
Application granted granted Critical
Publication of AU534669B2 publication Critical patent/AU534669B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL 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
    • G08B29/04—Monitoring of the detection circuits
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
AU76634/81A 1979-09-15 1981-10-20 Alarm system Ceased AU534669B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU76634/81A AU534669B2 (en) 1979-09-15 1981-10-20 Alarm system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA785255 1979-09-15
AU76634/81A AU534669B2 (en) 1979-09-15 1981-10-20 Alarm system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
AU50860/79A Division AU535230B2 (en) 1978-09-15 1979-09-14 Alarm system

Publications (2)

Publication Number Publication Date
AU7663481A AU7663481A (en) 1982-02-18
AU534669B2 true AU534669B2 (en) 1984-02-09

Family

ID=3757516

Family Applications (1)

Application Number Title Priority Date Filing Date
AU76634/81A Ceased AU534669B2 (en) 1979-09-15 1981-10-20 Alarm system

Country Status (1)

Country Link
AU (1) AU534669B2 (en)

Also Published As

Publication number Publication date
AU7663481A (en) 1982-02-18

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