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Application filedfiledCritical
Priority to JP1977112674UpriorityCriticalpatent/JPS5731143Y2/ja
Priority to US05/919,851prioritypatent/US4232853A/en
Priority to DE2829172Aprioritypatent/DE2829172C2/de
Publication of JPS5438113UpublicationCriticalpatent/JPS5438113U/ja
Application grantedgrantedCritical
Publication of JPS5731143Y2publicationCriticalpatent/JPS5731143Y2/ja