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 Friedrich Peter HeldfiledCriticalFriedrich Peter Held
Priority to DK280943ApriorityCriticalpatent/DK65194C/da
Application grantedgrantedCritical
Publication of DK65194CpublicationCriticalpatent/DK65194C/da