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 DE1903157515Dexternal-prioritypatent/DE157515C/de
Application filed by Anton Van KempenfiledCriticalAnton Van Kempen
Application grantedgrantedCritical
Publication of AT24670BpublicationCriticalpatent/AT24670B/de