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Application filedfiledCritical
Priority to JP1973085380UpriorityCriticalpatent/JPS5633172Y2/ja
Priority to US05/460,886prioritypatent/US3978375A/en
Priority to DE2418954Aprioritypatent/DE2418954A1/de
Publication of JPS5032559UpublicationCriticalpatent/JPS5032559U/ja
Application grantedgrantedCritical
Publication of JPS5633172Y2publicationCriticalpatent/JPS5633172Y2/ja