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 DE1918830Aexternal-prioritypatent/DE1918830C3/de
Application filed by Weichs HermannfiledCriticalWeichs Hermann
Application grantedgrantedCritical
Publication of AT301922BpublicationCriticalpatent/AT301922B/de