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Priority claimed from DE19813148166external-prioritypatent/DE3148166C1/de
Priority claimed from DE19823239700external-prioritypatent/DE3239700C2/de
Application filed by Klaus HafnerfiledCriticalKlaus Hafner
Priority claimed from EP82111026Aexternal-prioritypatent/EP0081179B1/de
Application grantedgrantedCritical
Publication of ATE21176T1publicationCriticalpatent/ATE21176T1/de