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 Louis Jan Dominicus Va BusschefiledCriticalLouis Jan Dominicus Va Bussche
Priority to BE608172ApriorityCriticalpatent/BE608172A/fr
Publication of BE608172ApublicationCriticalpatent/BE608172A/fr