AT818BAT818DAAT818BAT 818 BAT818 BAT 818BAT 818D AAT818D AAT 818DAAT 818 BAT818 BAT 818B
Authority
AT
Austria
Application number
Inventor
Heinrich Heerdt
Original Assignee
Heinrich Heerdt
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
Application grantedgrantedCritical
Publication of AT818BpublicationCriticalpatent/AT818B/de