AT578BAT578DAAT578BAT 578 BAT578 BAT 578BAT 578D AAT578D AAT 578DAAT 578 BAT578 BAT 578B
Authority
AT
Austria
Application number
Inventor
Ludwig Ruemelin
Heinrich Auer
Original Assignee
Ludwig Ruemelin
Heinrich Auer
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 AT715DpriorityCriticalpatent/AT715B/de
Priority to AT718Dprioritypatent/AT718B/de
Application grantedgrantedCritical
Publication of AT578BpublicationCriticalpatent/AT578B/de