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Priority to JP7678869UpriorityCriticalpatent/JPS4736073Y1/ja
Priority to NO424069Aprioritypatent/NO130389B/no
Priority to NL6916655Aprioritypatent/NL147958B/xx
Priority to DE19691957438prioritypatent/DE1957438C3/de
Priority to FR6939355Aprioritypatent/FR2023445A1/fr
Priority to GB1238135Dprioritypatent/GB1238135A/en
Publication of JPS4736073Y1publicationCriticalpatent/JPS4736073Y1/ja