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 Trains De Roues Du CtfiledCriticalTrains De Roues Du Ct
Priority to BE608901ApriorityCriticalpatent/BE608901R/fr
Application grantedgrantedCritical
Publication of BE608901RpublicationCriticalpatent/BE608901R/fr