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 Ernst Dipl Ing Haubold, Dieter HauboldfiledCriticalErnst Dipl Ing Haubold
Application grantedgrantedCritical
Publication of AT182704BpublicationCriticalpatent/AT182704B/de