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Priority to JP7581870UpriorityCriticalpatent/JPS4920535Y1/ja
Priority to US00166556Aprioritypatent/US3737703A/en
Priority to GB3563071Aprioritypatent/GB1302510A/en
Priority to FR7128123Aprioritypatent/FR2099406A5/fr
Priority to DE2138274Aprioritypatent/DE2138274C3/de
Publication of JPS4920535Y1publicationCriticalpatent/JPS4920535Y1/ja