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 Deprez MfiledCriticalDeprez M
Priority to BE0/199628ApriorityCriticalpatent/BE882025A/fr
Publication of BE882025ApublicationCriticalpatent/BE882025A/fr