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Priority to JP46060719ApriorityCriticalpatent/JPS524212B1/ja
Priority to DE2235932Aprioritypatent/DE2235932C3/de
Priority to GB3434872Aprioritypatent/GB1389861A/en
Priority to US00274254Aprioritypatent/US3833759A/en
Publication of JPS524212B1publicationCriticalpatent/JPS524212B1/ja