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 Helmer Lund HansenfiledCriticalHelmer Lund Hansen
Priority to DK571173ApriorityCriticalpatent/DK137409B/da
Publication of DK571173ApublicationCriticalpatent/DK571173A/da
Publication of DK137409BpublicationCriticalpatent/DK137409B/da
Application grantedgrantedCritical
Publication of DK137409CpublicationCriticalpatent/DK137409C/da