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GB8802604D0 - Security system - Google Patents

Security system

Info

Publication number
GB8802604D0
GB8802604D0 GB888802604A GB8802604A GB8802604D0 GB 8802604 D0 GB8802604 D0 GB 8802604D0 GB 888802604 A GB888802604 A GB 888802604A GB 8802604 A GB8802604 A GB 8802604A GB 8802604 D0 GB8802604 D0 GB 8802604D0
Authority
GB
United Kingdom
Prior art keywords
security system
security
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.)
Pending
Application number
GB888802604A
Other versions
GB2201725A (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.)
Instrumentation & Microelectro
Original Assignee
Instrumentation & Microelectro
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 Instrumentation & Microelectro filed Critical Instrumentation & Microelectro
Publication of GB8802604D0 publication Critical patent/GB8802604D0/en
Publication of GB2201725A publication Critical patent/GB2201725A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G07C9/00722—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 magnetic components, e.g. magnets, magnetic strips, metallic inserts
    • G07C9/00738—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 magnetic components, e.g. magnets, magnetic strips, metallic inserts sensed by Hall effect devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Push-Button Switches (AREA)
GB08802604A 1987-02-28 1988-02-05 Security system Pending GB2201725A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878704765A GB8704765D0 (en) 1987-02-28 1987-02-28 Security system

Publications (2)

Publication Number Publication Date
GB8802604D0 true GB8802604D0 (en) 1988-03-02
GB2201725A GB2201725A (en) 1988-09-07

Family

ID=10613135

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878704765A Pending GB8704765D0 (en) 1987-02-28 1987-02-28 Security system
GB08802604A Pending GB2201725A (en) 1987-02-28 1988-02-05 Security system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878704765A Pending GB8704765D0 (en) 1987-02-28 1987-02-28 Security system

Country Status (1)

Country Link
GB (2) GB8704765D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2707323B1 (en) * 1993-07-07 1995-09-08 Lopez Casals Jesus Magnetically controlled locking device.
IL131928A (en) * 1999-09-16 2001-06-14 Alon Israel Color based lock and key
US7500371B2 (en) 2005-11-18 2009-03-10 Acco Brands Usa Llc Locking device with passage
GB2439455B (en) 2006-06-23 2012-01-11 Acco Brands Usa Llc Master keyed combination lock
WO2010138847A2 (en) 2009-05-29 2010-12-02 Acco Brands Usa Llc Security apparatus including attachment device
USD651889S1 (en) 2011-04-19 2012-01-10 Acco Brands Usa Llc Security apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753381A1 (en) * 1977-11-30 1979-06-07 Sachs Systemtechnik Gmbh MAGNETIC SWITCH LOCK
DE2847730A1 (en) * 1978-11-03 1980-05-14 Sachs Systemtechnik Gmbh MAGNETIC SWITCH LOCK
DE3318624A1 (en) * 1983-05-21 1984-11-22 Sachs Systemtechnik Gmbh, 8720 Schweinfurt MAGNETICALLY CODED WARNING OR LOCKING SYSTEM WITH SERIAL CODE TRANSFER
US4849749A (en) * 1986-02-28 1989-07-18 Honda Lock Manufacturing Co., Ltd. Electronic lock and key switch having key identifying function

Also Published As

Publication number Publication date
GB2201725A (en) 1988-09-07
GB8704765D0 (en) 1987-04-01

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