Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE2137137Aexternal-prioritypatent/DE2137137C2/de
Application filed by Amberger Kaolinwerke GmbhfiledCriticalAmberger Kaolinwerke Gmbh
Priority to AT823074ApriorityCriticalpatent/AT342085B/de
Publication of ATA823074ApublicationCriticalpatent/ATA823074A/de
Application grantedgrantedCritical
Publication of AT342085BpublicationCriticalpatent/AT342085B/de