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 Ernst Abildgaard NielsenfiledCriticalKnud Ernst Abildgaard Nielsen
Priority to DK178444ApriorityCriticalpatent/DK66519C/da
Application grantedgrantedCritical
Publication of DK66519CpublicationCriticalpatent/DK66519C/da