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Publication of FR794009ApublicationCriticalpatent/FR794009A/fr
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
FR794009D1935-07-251935-07-25Dispositif de sécurité pour serrures de portes, fenêtres, etc.
ExpiredFR794009A
(fr)