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 FR7931990Aexternal-prioritypatent/FR2472616A1/fr
Priority claimed from FR8003091Aexternal-prioritypatent/FR2475574A2/fr
Application filed by Creusot-LoirefiledCriticalCreusot-Loire
Priority claimed from EP80401847Aexternal-prioritypatent/EP0031776B1/de
Application grantedgrantedCritical
Publication of ATE3445T1publicationCriticalpatent/ATE3445T1/de