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 FR8104929Aexternal-prioritypatent/FR2501609A1/fr
Priority claimed from FR8115087Aexternal-prioritypatent/FR2515126A2/fr
Application filed by Rail Chimie SafiledCriticalRail Chimie Sa
Priority claimed from EP19820400430external-prioritypatent/EP0060775B1/de
Application grantedgrantedCritical
Publication of ATE13841T1publicationCriticalpatent/ATE13841T1/de