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Priority claimed from DE19873715211external-prioritypatent/DE3715211C1/en
Priority claimed from DE19883808782external-prioritypatent/DE3808782C1/en
Application filed by Bernd ToenniesfiledCriticalBernd Toennies
Priority claimed from EP88104701Aexternal-prioritypatent/EP0289769B1/en
Application grantedgrantedCritical
Publication of ATE70697T1publicationCriticalpatent/ATE70697T1/en