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Publication of FR390382ApublicationCriticalpatent/FR390382A/en
E05B13/00—Devices preventing the key or the handle or both from being used
E05B13/04—Devices preventing the key or the handle or both from being used shaped as fork-like implements grasping and fixing the key or a handle, e.g. a thumb-turn
FR390382D1908-05-191908-05-19
Safety device for key
ExpiredFR390382A
(en)