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Priority to JP47017725ApriorityCriticalpatent/JPS5129549B2/ja
Priority to US332758Aprioritypatent/US3888712A/en
Priority to FR7306160Aprioritypatent/FR2173139B1/fr
Priority to NO703/73Aprioritypatent/NO139995C/no
Priority to DE19732308590prioritypatent/DE2308590B2/de
Publication of JPS4886973ApublicationCriticalpatent/JPS4886973A/ja
Publication of JPS5129549B2publicationCriticalpatent/JPS5129549B2/ja