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Priority to JP7136270UpriorityCriticalpatent/JPS4943273Y1/ja
Priority to US00121888Aprioritypatent/US3767196A/en
Priority to DE19712113637prioritypatent/DE2113637C3/de
Priority to CA108415Aprioritypatent/CA928350A/en
Priority to FR7110215Aprioritypatent/FR2085034A5/fr
Priority to GB2477471*Aprioritypatent/GB1301620A/en
Publication of JPS4943273Y1publicationCriticalpatent/JPS4943273Y1/ja