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 Helmuth Arne Viktor JensenfiledCriticalHelmuth Arne Viktor Jensen
Priority to DK291655ApriorityCriticalpatent/DK86916C/en
Application grantedgrantedCritical
Publication of DK86916CpublicationCriticalpatent/DK86916C/en