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
Priority claimed from BE769272Aexternal-prioritypatent/BE769272A/fr
Priority claimed from BE2051980Aexternal-prioritypatent/BE784954R/fr
Application filed by Tombu GerardfiledCriticalTombu Gerard
Publication of OA04121ApublicationCriticalpatent/OA04121A/fr