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GILBERT DUMAS
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GILBERT DUMAS
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Application filed by GILBERT DUMASfiledCriticalGILBERT DUMAS
Application grantedgrantedCritical
Publication of FR388904ApublicationCriticalpatent/FR388904A/fr
G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B13/00—Burglar, theft or intruder alarms
G08B13/02—Mechanical actuation
G08B13/06—Mechanical actuation by tampering with fastening
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR388904D1908-04-041908-04-04Dispositif d'alarme s'armant et détonant automatiquement dès que l'on tente de forcer la serrure qui en est munie
ExpiredFR388904A
(fr)