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Priority claimed from FR94654Aexternal-prioritypatent/FR1518844A/fr
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Publication of BE709517ApublicationCriticalpatent/BE709517A/fr
Cheminee autoportante de recuperation d'energie a condensation sous la forme d'un echangeur de chaleur "fumee-eau" a contre courant (pour toutes chaudieres seches ou foyers).