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Priority claimed from FR8907844Aexternal-prioritypatent/FR2648678B1/en
Priority claimed from FR909004986Aexternal-prioritypatent/FR2660836B2/en
Application filed by Rene GrandifiledCriticalRene Grandi
Application grantedgrantedCritical
Publication of ATE104512T1publicationCriticalpatent/ATE104512T1/en