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 F W Joehnk FafiledCriticalF W Joehnk Fa
Priority to DK415755ApriorityCriticalpatent/DK90246C/da
Application grantedgrantedCritical
Publication of DK90246CpublicationCriticalpatent/DK90246C/da