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Application filedfiledCritical
Priority to JP1979111525UpriorityCriticalpatent/JPS6135972Y2/ja
Priority to US06/177,446prioritypatent/US4346056A/en
Priority to DE3030879Aprioritypatent/DE3030879C2/de
Publication of JPS5629466UpublicationCriticalpatent/JPS5629466U/ja
Application grantedgrantedCritical
Publication of JPS6135972Y2publicationCriticalpatent/JPS6135972Y2/ja