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Priority to JP5312368ApriorityCriticalpatent/JPS4842608B1/ja
Priority to US841580Aprioritypatent/US3652690A/en
Priority to GB1226449Dprioritypatent/GB1226449A/en
Priority to DE19691938014prioritypatent/DE1938014A1/de
Publication of JPS4842608B1publicationCriticalpatent/JPS4842608B1/ja