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Priority claimed from FR8021437Aexternal-prioritypatent/FR2491316A1/fr
Priority claimed from FR8115057Aexternal-prioritypatent/FR2510378B2/fr
Application filed by Etalagire S AfiledCriticalEtalagire S A
Priority claimed from EP81401535Aexternal-prioritypatent/EP0049665B1/de
Application grantedgrantedCritical
Publication of ATE13383T1publicationCriticalpatent/ATE13383T1/de