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 FR8112987Aexternal-prioritypatent/FR2508147A1/en
Application filed by Gilbert ChevalierfiledCriticalGilbert Chevalier
Application grantedgrantedCritical
Publication of ATE10542T1publicationCriticalpatent/ATE10542T1/en