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 Knapp GuenterfiledCriticalKnapp Guenter
Publication of ATA286981ApublicationCriticalpatent/ATA286981A/de
Application grantedgrantedCritical
Publication of AT372193BpublicationCriticalpatent/AT372193B/de