AT838BAT838DAAT838BAT 838 BAT838 BAT 838BAT 838D AAT838D AAT 838DAAT 838 BAT838 BAT 838B
Authority
AT
Austria
Application number
Inventor
Wilhelm Frenz
Wilhelm Heinrich Aug Sieverts
Original Assignee
Wilhelm Frenz
Wilhelm Heinrich Aug Sieverts
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 Wilhelm Frenz, Wilhelm Heinrich Aug SievertsfiledCriticalWilhelm Frenz
Application grantedgrantedCritical
Publication of AT838BpublicationCriticalpatent/AT838B/de