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Priority claimed from DE3124244Aexternal-prioritypatent/DE3124244C2/en
Priority claimed from DE3139174Aexternal-prioritypatent/DE3139174C2/en
Application filed by Upat Max Langensiepen KgfiledCriticalUpat Max Langensiepen Kg
Priority claimed from EP82105112Aexternal-prioritypatent/EP0068227B1/en
Application grantedgrantedCritical
Publication of ATE17773T1publicationCriticalpatent/ATE17773T1/en