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Application filedfiledCritical
Priority to JP1973058297UpriorityCriticalpatent/JPS5329853Y2/ja
Priority to US05/428,833prioritypatent/US3958546A/en
Publication of JPS505027UpublicationCriticalpatent/JPS505027U/ja
Priority to US05/640,692prioritypatent/US4090488A/en
Application grantedgrantedCritical
Publication of JPS5329853Y2publicationCriticalpatent/JPS5329853Y2/ja