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 Knud Helge Johannes WessbergfiledCriticalKnud Helge Johannes Wessberg
Priority to DK171350ApriorityCriticalpatent/DK75263C/da
Application grantedgrantedCritical
Publication of DK75263CpublicationCriticalpatent/DK75263C/da