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 Pieter Van De VeldefiledCriticalPieter Van De Velde
Priority to BE619889ApriorityCriticalpatent/BE619889A/nl
Publication of BE619889ApublicationCriticalpatent/BE619889A/nl