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
Priority claimed from DE1906194248Dexternal-prioritypatent/DE194248C/de
Application filed by Ernst MehlhornfiledCriticalErnst Mehlhorn
Application grantedgrantedCritical
Publication of AT37263BpublicationCriticalpatent/AT37263B/de