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 Viggo BerthelsenfiledCriticalViggo Berthelsen
Priority to DK79245ApriorityCriticalpatent/DK64851C/da
Application grantedgrantedCritical
Publication of DK64851CpublicationCriticalpatent/DK64851C/da