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Priority claimed from DE19863623144external-prioritypatent/DE3623144A1/en
Priority claimed from DE19863644764external-prioritypatent/DE3644764A1/en
Application filed by Josef SchnellfiledCriticalJosef Schnell
Priority claimed from EP87109657Aexternal-prioritypatent/EP0253248B1/en
Application grantedgrantedCritical
Publication of ATE52929T1publicationCriticalpatent/ATE52929T1/en