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Priority to JP10901870ApriorityCriticalpatent/JPS4818352B1/ja
Priority to US127184Aprioritypatent/US3702616A/en
Priority to DE19712154681prioritypatent/DE2154681A1/de
Priority to IT5385871Aprioritypatent/IT986828B/it
Publication of JPS4818352B1publicationCriticalpatent/JPS4818352B1/ja