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
Application filed by Buesching & Co IngenieurbaufiledCriticalBuesching & Co Ingenieurbau
Application grantedgrantedCritical
Publication of AT175244BpublicationCriticalpatent/AT175244B/de