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Priority to JP44060884ApriorityCriticalpatent/JPS492857B1/ja
Priority to US868800Aprioritypatent/US3622798A/en
Priority to NL6915979.Aprioritypatent/NL158981B/xx
Priority to DE1953478Aprioritypatent/DE1953478C3/de
Priority to GB1290149Dprioritypatent/GB1290149A/en
Priority to FR6936419Aprioritypatent/FR2021406A1/fr
Publication of JPS492857B1publicationCriticalpatent/JPS492857B1/ja