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 DE1898116694Dexternal-prioritypatent/DE116694C/de
Application filed by Rolffs & CofiledCriticalRolffs & Co
Application grantedgrantedCritical
Publication of AT4384BpublicationCriticalpatent/AT4384B/de