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Application filed by Cagnato EfiledCriticalCagnato E
Priority to PT6646777ApriorityCriticalpatent/PT66467B/fr
Publication of PT66467ApublicationCriticalpatent/PT66467A/fr
Publication of PT66467BpublicationCriticalpatent/PT66467B/fr
Safety fastener for e.g. jewelry - has locking member slidable lengthwise between side walls of hollow casing, with notch which registers with casing openings (PT 2.5.78)