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Priority claimed from DE4018843Aexternal-prioritypatent/DE4018843A1/en
Application filed by Markhorst HollandfiledCriticalMarkhorst Holland
Priority claimed from EP90122716Aexternal-prioritypatent/EP0459017B1/en
Application grantedgrantedCritical
Publication of ATE97378T1publicationCriticalpatent/ATE97378T1/en