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A process for the preparation of lignites or coals, peat, firewood and the like that are close to them due to their water content and oxygen richness, to increase their calorific effect and permanent drying.
A machine entitled "Villarubias" that by means of a combination of blades cuts all kinds of wood susceptible to combustion, either by its nature or by being impregnated with combustible material, into small rods usable to light