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 Theodor JespersenfiledCriticalTheodor Jespersen
Application grantedgrantedCritical
Publication of DK44582CpublicationCriticalpatent/DK44582C/en