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Priority claimed from FR8606310Aexternal-prioritypatent/FR2598172B1/fr
Priority claimed from FR8616476Aexternal-prioritypatent/FR2607178B2/fr
Application filed by Dubois & CiefiledCriticalDubois & Cie
Application grantedgrantedCritical
Publication of ATE50309T1publicationCriticalpatent/ATE50309T1/de