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Priority to JP6053073UpriorityCriticalpatent/JPS527113Y2/ja
Priority to DE19742424749prioritypatent/DE2424749B2/de
Priority to US472343Aprioritypatent/US3924608A/en
Publication of JPS508784UpublicationCriticalpatent/JPS508784U/ja
Application grantedgrantedCritical
Publication of JPS527113Y2publicationCriticalpatent/JPS527113Y2/ja