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Priority claimed from DE19681770528external-prioritypatent/DE1770528A1/de
Priority claimed from DE19681770529external-prioritypatent/DE1770529A1/de
Priority claimed from DE19681770543external-prioritypatent/DE1770543C3/de
Priority claimed from DE19681770552external-prioritypatent/DE1770552A1/de
Application filed by Basf AgfiledCriticalBasf Ag
Application grantedgrantedCritical
Publication of AT283733BpublicationCriticalpatent/AT283733B/de