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 Marcel-Jozef Van Coillie, Georges-Jerome Van CoilliefiledCriticalMarcel-Jozef Van Coillie
Priority to BE677350ApriorityCriticalpatent/BE677350A/en
Publication of BE677350ApublicationCriticalpatent/BE677350A/en