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Application filedfiledCritical
Priority to JP15250975UpriorityCriticalpatent/JPS5548800Y2/ja
Priority to DE19762619318prioritypatent/DE2619318C3/de
Priority to US05/681,775prioritypatent/US4128363A/en
Publication of JPS5263707UpublicationCriticalpatent/JPS5263707U/ja
Application grantedgrantedCritical
Publication of JPS5548800Y2publicationCriticalpatent/JPS5548800Y2/ja