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 Kaj Ludvig GraversenfiledCriticalKaj Ludvig Graversen
Priority to DK174557ApriorityCriticalpatent/DK86055C/da
Application grantedgrantedCritical
Publication of DK86055CpublicationCriticalpatent/DK86055C/da