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Application filedfiledCritical
Priority to JP1980047612UpriorityCriticalpatent/JPS6137865Y2/ja
Priority to US06/248,351prioritypatent/US4415072A/en
Priority to DE3113583Aprioritypatent/DE3113583C2/de
Publication of JPS56149131UpublicationCriticalpatent/JPS56149131U/ja
Application grantedgrantedCritical
Publication of JPS6137865Y2publicationCriticalpatent/JPS6137865Y2/ja