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 FR8212545Aexternal-prioritypatent/FR2530282B1/fr
Priority claimed from FR8311436Aexternal-prioritypatent/FR2548719B2/fr
Application filed by Cousin Cie Ets A & M FreresfiledCriticalCousin Cie Ets A & M Freres
Application grantedgrantedCritical
Publication of ATE22955T1publicationCriticalpatent/ATE22955T1/de