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 DE1898112404Dexternal-prioritypatent/DE112404C/de
Application filed by Friedrich August HaselwanderfiledCriticalFriedrich August Haselwander
Application grantedgrantedCritical
Publication of AT11547BpublicationCriticalpatent/AT11547B/de