FR1574042A - - Google Patents

Info

Publication number
FR1574042A
FR1574042A FR1574042DA FR1574042A FR 1574042 A FR1574042 A FR 1574042A FR 1574042D A FR1574042D A FR 1574042DA FR 1574042 A FR1574042 A FR 1574042A
Authority
FR
France
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1574042A publication Critical patent/FR1574042A/fr
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
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2491—Intrusion detection systems, i.e. where the body of an intruder causes the interference with the electromagnetic field
FR1574042D 1968-04-05 1968-04-05 Expired FR1574042A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR147130 1968-04-05

Publications (1)

Publication Number Publication Date
FR1574042A true FR1574042A (en) 1969-07-11

Family

ID=8648625

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1574042D Expired FR1574042A (en) 1968-04-05 1968-04-05

Country Status (1)

Country Link
FR (1) FR1574042A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578077A1 (en) * 1985-02-27 1986-08-29 Alsthom Cgee Method and device for intrusion detection with UHF barrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2578077A1 (en) * 1985-02-27 1986-08-29 Alsthom Cgee Method and device for intrusion detection with UHF barrier

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Legal Events

Date Code Title Description
ST Notification of lapse