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Priority to JP5439780UpriorityCriticalpatent/JPS611904Y2/ja
Priority to GB8111895Aprioritypatent/GB2075717B/en
Priority to IT8121305Aprioritypatent/IT1137379B/it
Priority to DE19813116099prioritypatent/DE3116099A1/de
Publication of JPS56155800UpublicationCriticalpatent/JPS56155800U/ja
Application grantedgrantedCritical
Publication of JPS611904Y2publicationCriticalpatent/JPS611904Y2/ja