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Priority claimed from DE3839844Aexternal-prioritypatent/DE3839844A1/de
Application filed by Hildebrandt Gmbh HpsfiledCriticalHildebrandt Gmbh Hps
Priority claimed from EP89121751Aexternal-prioritypatent/EP0370525B1/de
Application grantedgrantedCritical
Publication of ATE78315T1publicationCriticalpatent/ATE78315T1/de