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Priority claimed from FR797016Aexternal-prioritypatent/FR1517653A/fr
Priority claimed from FR801633Aexternal-prioritypatent/FR96647E/fr
Application filed by Brevets J A Gregoire Soc DfiledCriticalBrevets J A Gregoire Soc D
Publication of BE591679ApublicationCriticalpatent/BE591679A/fr