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Priority claimed from DE8901615Uexternal-prioritypatent/DE8901615U1/en
Priority claimed from DE8912065Uexternal-prioritypatent/DE8912065U1/en
Application filed by Franz VorsmannfiledCriticalFranz Vorsmann
Priority claimed from EP90101397Aexternal-prioritypatent/EP0383067B1/en
Application grantedgrantedCritical
Publication of ATE82038T1publicationCriticalpatent/ATE82038T1/en