AT171BAT171DAAT171BAT 171 BAT171 BAT 171BAT 171D AAT171D AAT 171DAAT 171 BAT171 BAT 171B
Authority
AT
Austria
Application number
Inventor
Alfred Dervaux
Original Assignee
Alfred Dervaux
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.)
Publication date
Priority to AT399DpriorityCriticalpatent/AT399B/de
Priority to AT400Dprioritypatent/AT400B/de
Application grantedgrantedCritical
Publication of AT171BpublicationCriticalpatent/AT171B/de