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Priority claimed from FR33007106Aexternal-prioritypatent/FR1219498A/fr
Priority claimed from FR7133Aexternal-prioritypatent/FR75944E/fr
Priority claimed from FR7159Aexternal-prioritypatent/FR76465E/fr
Application filed by Jean Trocard, Andre LaportefiledCriticalJean Trocard
Publication of BE589023ApublicationCriticalpatent/BE589023A/fr