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Priority to JP827870ApriorityCriticalpatent/JPS508314B1/ja
Priority to US00074504Aprioritypatent/US3731162A/en
Priority to DE2047342Aprioritypatent/DE2047342C3/de
Priority to FR707034853Aprioritypatent/FR2063016B1/fr
Publication of JPS508314B1publicationCriticalpatent/JPS508314B1/ja