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Priority claimed from GB8117574Aexternal-prioritypatent/GB2099950B/en
Application filed by Hanger & Co Ltd J EfiledCriticalHanger & Co Ltd J E
Priority claimed from EP82302885Aexternal-prioritypatent/EP0068658B1/de
Application grantedgrantedCritical
Publication of ATE17998T1publicationCriticalpatent/ATE17998T1/de