AU489927B2 - Switching system - Google Patents

Switching system

Info

Publication number
AU489927B2
AU489927B2 AU41774/72A AU4177472A AU489927B2 AU 489927 B2 AU489927 B2 AU 489927B2 AU 41774/72 A AU41774/72 A AU 41774/72A AU 4177472 A AU4177472 A AU 4177472A AU 489927 B2 AU489927 B2 AU 489927B2
Authority
AU
Australia
Prior art keywords
switching system
switching
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
AU41774/72A
Other versions
AU4177472A (en
Inventor
Gerard Hagendoorn Dick Scheffing Johan
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Priority to AU41774/72A priority Critical patent/AU489927B2/en
Application granted granted Critical
Publication of AU4177472A publication Critical patent/AU4177472A/en
Publication of AU489927B2 publication Critical patent/AU489927B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00674—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons
    • G07C9/0069—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with switch-buttons actuated in a predetermined sequence

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
AU41774/72A 1972-05-02 1972-05-02 Switching system Expired AU489927B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU41774/72A AU489927B2 (en) 1972-05-02 1972-05-02 Switching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU41774/72A AU489927B2 (en) 1972-05-02 1972-05-02 Switching system

Publications (2)

Publication Number Publication Date
AU4177472A AU4177472A (en) 1973-11-08
AU489927B2 true AU489927B2 (en) 1973-11-08

Family

ID=3729102

Family Applications (1)

Application Number Title Priority Date Filing Date
AU41774/72A Expired AU489927B2 (en) 1972-05-02 1972-05-02 Switching system

Country Status (1)

Country Link
AU (1) AU489927B2 (en)

Also Published As

Publication number Publication date
AU4177472A (en) 1973-11-08

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