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Priority claimed from DE3142724Aexternal-prioritypatent/DE3142724C1/en
Priority claimed from DE19823219522external-prioritypatent/DE3219522A1/en
Application filed by Wedekind Denso ChemiefiledCriticalWedekind Denso Chemie
Application grantedgrantedCritical
Publication of ATE20490T1publicationCriticalpatent/ATE20490T1/en