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Priority to JP6576474ApriorityCriticalpatent/JPS5429195B2/ja
Priority to DE19752515374prioritypatent/DE2515374A1/de
Publication of JPS50157278ApublicationCriticalpatent/JPS50157278A/ja
Priority to US05/646,921prioritypatent/US4059613A/en
Publication of JPS5429195B2publicationCriticalpatent/JPS5429195B2/ja