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 Nedschroef Octrooi MaatsfiledCriticalNedschroef Octrooi Maats
Priority to DK305970ApriorityCriticalpatent/DK131708C/da
Publication of DK131708BpublicationCriticalpatent/DK131708B/da
Application grantedgrantedCritical
Publication of DK131708CpublicationCriticalpatent/DK131708C/da