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Priority to JP4356571UpriorityCriticalpatent/JPS48257U/ja
Priority to US00187635Aprioritypatent/US3747058A/en
Priority to DE2150730Aprioritypatent/DE2150730C3/de
Priority to GB4786171Aprioritypatent/GB1367295A/en
Publication of JPS48257UpublicationCriticalpatent/JPS48257U/ja