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Application grantedgrantedCritical
Publication of CA3261ApublicationCriticalpatent/CA3261A/fr
CA000003261APerfectionnements dans la construction, l'ajustage et le fonctionnement des cornues pour la fabrication du gaz de charbon
ExpiredCA3261A
(fr)
Perfectionnements dans la fabrication du fer et de l'acier, dans la construction et dans les parois des fourneaux tournants et aux appareils quis'y rattachent