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 Willy Van HoorebekefiledCriticalWilly Van Hoorebeke
Priority to BE588632ApriorityCriticalpatent/BE588632A/nl
Publication of BE588632ApublicationCriticalpatent/BE588632A/nl