AT720BAT720DAAT720BAT 720 BAT720 BAT 720BAT 720D AAT720D AAT 720DAAT 720 BAT720 BAT 720B
Authority
AT
Austria
Application number
Inventor
Herbert Stanley Headington
Original Assignee
Herbert Stanley Headington
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 Herbert Stanley HeadingtonfiledCriticalHerbert Stanley Headington
Application grantedgrantedCritical
Publication of AT720BpublicationCriticalpatent/AT720B/de