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
Application filed by Carl Alrik Hult, Oscar Walfrid HultfiledCriticalCarl Alrik Hult
Application grantedgrantedCritical
Publication of AT11618BpublicationCriticalpatent/AT11618B/de
