GB8910113D0 - Intrusion detector - Google Patents

Intrusion detector

Info

Publication number
GB8910113D0
GB8910113D0 GB898910113A GB8910113A GB8910113D0 GB 8910113 D0 GB8910113 D0 GB 8910113D0 GB 898910113 A GB898910113 A GB 898910113A GB 8910113 A GB8910113 A GB 8910113A GB 8910113 D0 GB8910113 D0 GB 8910113D0
Authority
GB
United Kingdom
Prior art keywords
intrusion detector
intrusion
detector
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.)
Withdrawn
Application number
GB898910113A
Other versions
GB2231696A (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.)
GREASLEY ELECTRONICS Ltd
Original Assignee
GREASLEY ELECTRONICS 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 GREASLEY ELECTRONICS Ltd filed Critical GREASLEY ELECTRONICS Ltd
Priority to GB8910113A priority Critical patent/GB2231696A/en
Publication of GB8910113D0 publication Critical patent/GB8910113D0/en
Publication of GB2231696A publication Critical patent/GB2231696A/en
Withdrawn legal-status Critical Current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
    • G08B13/02—Mechanical actuation
GB8910113A 1989-05-03 1989-05-03 Intrusion detector Withdrawn GB2231696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8910113A GB2231696A (en) 1989-05-03 1989-05-03 Intrusion detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8910113A GB2231696A (en) 1989-05-03 1989-05-03 Intrusion detector

Publications (2)

Publication Number Publication Date
GB8910113D0 true GB8910113D0 (en) 1989-06-21
GB2231696A GB2231696A (en) 1990-11-21

Family

ID=10656125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8910113A Withdrawn GB2231696A (en) 1989-05-03 1989-05-03 Intrusion detector

Country Status (1)

Country Link
GB (1) GB2231696A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2267591B (en) * 1992-06-06 1996-11-13 Michael Harold Barker Firearm alarm
EP3645819A1 (en) 2017-06-30 2020-05-06 Assa Abloy Entrance Systems AB Door operator

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3763484A (en) * 1972-09-27 1973-10-02 W Byers Inertia-tilt switch
US3866204A (en) * 1973-07-19 1975-02-11 James H Barkley Electronic medical warning device
GB1595788A (en) * 1976-04-12 1981-08-19 Walter Barlow Warning systems
GB2045492A (en) * 1979-03-15 1980-10-29 Balmore Eng Ltd Alarm device
GB2136619B (en) * 1983-02-08 1986-04-09 Henry Vaughn Griffith Personal alarm apparatus
US4684928A (en) * 1984-12-03 1987-08-04 Alpine Electronics Inc. Motion sensor unit
US4772879A (en) * 1986-12-22 1988-09-20 Sydney Harrison Motion sensing alarm

Also Published As

Publication number Publication date
GB2231696A (en) 1990-11-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)