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 Valdemar Kjaer NielsenfiledCriticalValdemar Kjaer Nielsen
Priority to DK374846ApriorityCriticalpatent/DK70541C/da
Application grantedgrantedCritical
Publication of DK70541CpublicationCriticalpatent/DK70541C/da