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Priority claimed from DE19883834317external-prioritypatent/DE3834317C1/de
Application filed by Envicon Luft & WassertechnikfiledCriticalEnvicon Luft & Wassertechnik
Priority claimed from EP19890118696external-prioritypatent/EP0363865B1/de
Application grantedgrantedCritical
Publication of ATE71559T1publicationCriticalpatent/ATE71559T1/de