AT667BAT667DAAT667BAT 667 BAT667 BAT 667BAT 667D AAT667D AAT 667DAAT 667 BAT667 BAT 667B
Authority
AT
Austria
Application number
Inventor
Heinrich Hempel
Original Assignee
Heinrich Hempel
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 Heinrich HempelfiledCriticalHeinrich Hempel
Application grantedgrantedCritical
Publication of AT667BpublicationCriticalpatent/AT667B/de