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Priority to JP1974115450UpriorityCriticalpatent/JPS598049Y2/ja
Priority to DE2533707Aprioritypatent/DE2533707C3/de
Publication of JPS5141725UpublicationCriticalpatent/JPS5141725U/ja
Application grantedgrantedCritical
Publication of JPS598049Y2publicationCriticalpatent/JPS598049Y2/ja