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 A ChristensenfiledCriticalA Christensen
Priority to DK145774ApriorityCriticalpatent/DK145774A/da
Publication of DK145774ApublicationCriticalpatent/DK145774A/da