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Priority to JP1980015418UpriorityCriticalpatent/JPS6232270Y2/ja
Priority to DE19813104001prioritypatent/DE3104001A1/de
Priority to US06/232,851prioritypatent/US4348092A/en
Publication of JPS56117734UpublicationCriticalpatent/JPS56117734U/ja
Application grantedgrantedCritical
Publication of JPS6232270Y2publicationCriticalpatent/JPS6232270Y2/ja