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 Rockstrom & Schneider Nachf AfiledCriticalRockstrom & Schneider Nachf A
Application grantedgrantedCritical
Publication of AT6870BpublicationCriticalpatent/AT6870B/de