Legal status (The legal status 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 status listed.)
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 of DE174160CpublicationCriticalpatent/DE174160C/de
Application filedfiledCritical
Priority to AT28936DpriorityCriticalpatent/AT28936B/de