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Application filed by Anselme RigolifiledCriticalAnselme Rigoli
Publication of CH81275ApublicationCriticalpatent/CH81275A/fr
CH81275A1918-12-271918-12-27Chapeau de cheminée en éléments superposés en béton armé, constituant entre eux des canaux de tirage hélicoïdaux
CH81275A
(fr)