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Application filedfiledCritical
Priority to JP1975119221UpriorityCriticalpatent/JPS5650427Y2/ja
Priority to DE19762639199prioritypatent/DE2639199C2/de
Publication of JPS5233379UpublicationCriticalpatent/JPS5233379U/ja
Priority to US05/890,967prioritypatent/US4174894A/en
Application grantedgrantedCritical
Publication of JPS5650427Y2publicationCriticalpatent/JPS5650427Y2/ja