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Priority to JP18430679UpriorityCriticalpatent/JPS6022662Y2/ja
Priority to US06/216,942prioritypatent/US4374369A/en
Priority to DE19803048170prioritypatent/DE3048170A1/de
Publication of JPS56102127UpublicationCriticalpatent/JPS56102127U/ja
Application grantedgrantedCritical
Publication of JPS6022662Y2publicationCriticalpatent/JPS6022662Y2/ja