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Publication of FR344792ApublicationCriticalpatent/FR344792A/en
E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
E05B45/083—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate
FR344792D1904-07-131904-07-13
Electrical safety device against the clandestine opening of closings of doors, windows, etc.
ExpiredFR344792A
(en)