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.)
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Publication date
Priority claimed from AT5391Dexternal-prioritypatent/AT5391B/de
Application filed by Gustav GumpelfiledCriticalGustav Gumpel
Application grantedgrantedCritical
Publication of AT5828BpublicationCriticalpatent/AT5828B/de