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 Ziehl Fa GustavfiledCriticalZiehl Fa Gustav
Publication of ATA706874ApublicationCriticalpatent/ATA706874A/de
Application grantedgrantedCritical
Publication of AT328128BpublicationCriticalpatent/AT328128B/de