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Priority to JP13319980UpriorityCriticalpatent/JPS6113434Y2/ja
Priority to DE8181104649Tprioritypatent/DE3164134D1/de
Priority to EP81104649Aprioritypatent/EP0042582B1/en
Publication of JPS5755694UpublicationCriticalpatent/JPS5755694U/ja
Application grantedgrantedCritical
Publication of JPS6113434Y2publicationCriticalpatent/JPS6113434Y2/ja