FR731254A - Burglar alarm system, activated as soon as a window or door is opened - Google Patents

Burglar alarm system, activated as soon as a window or door is opened

Info

Publication number
FR731254A
FR731254A FR731254DA FR731254A FR 731254 A FR731254 A FR 731254A FR 731254D A FR731254D A FR 731254DA FR 731254 A FR731254 A FR 731254A
Authority
FR
France
Prior art keywords
soon
door
window
activated
opened
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
Other languages
French (fr)
Inventor
Theodor Wilhelm Romani
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 FR731254A publication Critical patent/FR731254A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
FR731254D 1932-02-11 1932-02-11 Burglar alarm system, activated as soon as a window or door is opened Expired FR731254A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR731254T 1932-02-11

Publications (1)

Publication Number Publication Date
FR731254A true FR731254A (en) 1932-08-31

Family

ID=9117564

Family Applications (1)

Application Number Title Priority Date Filing Date
FR731254D Expired FR731254A (en) 1932-02-11 1932-02-11 Burglar alarm system, activated as soon as a window or door is opened

Country Status (1)

Country Link
FR (1) FR731254A (en)

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