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 August UmlauffiledCriticalAugust Umlauf
Priority to AT13177DpriorityCriticalpatent/AT13177B/de
Application grantedgrantedCritical
Publication of AT13177BpublicationCriticalpatent/AT13177B/de