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 FR8001707Aexternal-prioritypatent/FR2474783A1/en
Priority claimed from FR8012363Aexternal-prioritypatent/FR2483703A1/en
Application filed by Merlin GerinfiledCriticalMerlin Gerin
Priority claimed from EP81400067Aexternal-prioritypatent/EP0034075B1/en
Application grantedgrantedCritical
Publication of ATE7111T1publicationCriticalpatent/ATE7111T1/en