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 AT44349Dexternal-prioritypatent/AT44349B/de
Application filed by Hans Strecker Dr AufermannfiledCriticalHans Strecker Dr Aufermann
Application grantedgrantedCritical
Publication of AT48710BpublicationCriticalpatent/AT48710B/de