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Priority to JP47062719ApriorityCriticalpatent/JPS523974B2/ja
Priority to US332758Aprioritypatent/US3888712A/en
Priority to NO703/73Aprioritypatent/NO139995C/no
Priority to FR7306160Aprioritypatent/FR2173139B1/fr
Priority to DE19732308590prioritypatent/DE2308590B2/de
Publication of JPS4922454ApublicationCriticalpatent/JPS4922454A/ja
Publication of JPS523974B2publicationCriticalpatent/JPS523974B2/ja