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 E DonvilfiledCriticalE Donvil
Priority to BE505662ApriorityCriticalpatent/BE505662A/fr
Publication of BE505662ApublicationCriticalpatent/BE505662A/fr