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 FR8704030Aexternal-prioritypatent/FR2612393B1/en
Priority claimed from FR8704354Aexternal-prioritypatent/FR2612763B1/en
Application filed by Bernard LambertinfiledCriticalBernard Lambertin
Priority claimed from EP19880460005external-prioritypatent/EP0283417B1/en
Application grantedgrantedCritical
Publication of ATE82676T1publicationCriticalpatent/ATE82676T1/en