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Priority to JP9289870UpriorityCriticalpatent/JPS5019153Y1/ja
Priority to US00144473Aprioritypatent/US3743849A/en
Priority to DE19712143821prioritypatent/DE2143821C3/de
Priority to GB43416/71*2Aprioritypatent/GB1366916A/en
Priority to FR7133680Aprioritypatent/FR2108283A5/fr
Publication of JPS5019153Y1publicationCriticalpatent/JPS5019153Y1/ja