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Priority to FR222560DpriorityCriticalpatent/FR222560A/fr
Application filedfiledCritical
Priority to JP1968097517Uprioritypatent/JPS472552Y1/ja
Priority to US873517Aprioritypatent/US3652892A/en
Priority to FR6937933Aprioritypatent/FR2022560A1/fr
Priority to DE19691955421prioritypatent/DE1955421A1/de
Publication of JPS472552Y1publicationCriticalpatent/JPS472552Y1/ja