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 FR8808515Aexternal-prioritypatent/FR2633250B1/en
Application filed by France DenisfiledCriticalFrance Denis
Application grantedgrantedCritical
Publication of ATE90175T1publicationCriticalpatent/ATE90175T1/en