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 Gerhard FoersterfiledCriticalGerhard Foerster
Priority to DK448858ApriorityCriticalpatent/DK90874C/en
Application grantedgrantedCritical
Publication of DK90874CpublicationCriticalpatent/DK90874C/en