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Priority to JP9638268UpriorityCriticalpatent/JPS5010829Y1/ja
Priority to US782975Aprioritypatent/US3537799A/en
Priority to GB1239268Dprioritypatent/GB1239268A/en
Priority to FR1595302Dprioritypatent/FR1595302A/fr
Priority to DE19681815535prioritypatent/DE1815535C3/de
Publication of JPS5010829Y1publicationCriticalpatent/JPS5010829Y1/ja