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Priority claimed from DE3224086Aexternal-prioritypatent/DE3224086C1/en
Priority claimed from DE19833317448external-prioritypatent/DE3317448A1/en
Application filed by Willmes Josef GmbhfiledCriticalWillmes Josef Gmbh
Priority claimed from EP83105966Aexternal-prioritypatent/EP0097894B1/en
Application grantedgrantedCritical
Publication of ATE21496T1publicationCriticalpatent/ATE21496T1/en