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Priority claimed from DE3915837Aexternal-prioritypatent/DE3915837A1/en
Priority claimed from DE4000310Aexternal-prioritypatent/DE4000310A1/en
Application filed by Quante Heinrich Berg IngfiledCriticalQuante Heinrich Berg Ing
Application grantedgrantedCritical
Publication of ATE93577T1publicationCriticalpatent/ATE93577T1/en