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Priority claimed from DE19813122087external-prioritypatent/DE3122087C2/en
Application filed by Adams Engelbert IngfiledCriticalAdams Engelbert Ing
Priority claimed from EP81105767Aexternal-prioritypatent/EP0045047B1/en
Application grantedgrantedCritical
Publication of ATE14330T1publicationCriticalpatent/ATE14330T1/en