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 FR787564Aexternal-prioritypatent/FR1226603A/fr
Application filed by Andre TaupinfiledCriticalAndre Taupin
Publication of BE577491ApublicationCriticalpatent/BE577491A/fr