GB962659A - - Google Patents

Info

Publication number
GB962659A
GB962659A GB962659DA GB962659A GB 962659 A GB962659 A GB 962659A GB 962659D A GB962659D A GB 962659DA GB 962659 A GB962659 A GB 962659A
Authority
GB
United Kingdom
Prior art keywords
relay
alarm
operate
antennae
antenna
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.)
Active
Application number
Other languages
English (en)
Publication of GB962659A publication Critical patent/GB962659A/en
Active 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
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB962659D Active GB962659A (fr)

Publications (1)

Publication Number Publication Date
GB962659A true GB962659A (fr)

Family

ID=1754266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB962659D Active GB962659A (fr)

Country Status (1)

Country Link
GB (1) GB962659A (fr)

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