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Priority to ES24315ApriorityCriticalpatent/ES24315A1/en
Publication of ES24315A1publicationCriticalpatent/ES24315A1/en
Improvements introduced in the construction of crucibles and muffles for the smelting of all kinds of metals and enameling of all the objects that are made of the same material as those.
Improvements in the apparatus for separating the particles of gold or other relatively precious metals, recovering them from the masses of pulp or other materials with which they are alloyed.
Improvements introduced in the construction of crucibles and muffles for the smelting of all kinds of metals and enameling of all the objects that are made of the same material as those.