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 Chr Wandel Metalltuch U MaschifiledCriticalChr Wandel Metalltuch U Maschi
Application grantedgrantedCritical
Publication of AT121456BpublicationCriticalpatent/AT121456B/de