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 DE1902136730Dexternal-prioritypatent/DE136730C/de
Application filed by Heinrich Josef BarthfiledCriticalHeinrich Josef Barth
Application grantedgrantedCritical
Publication of AT12645BpublicationCriticalpatent/AT12645B/de