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Individual
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Individual
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Priority to ES0257244ApriorityCriticalpatent/ES257244A1/en
Publication of ES257244A1publicationCriticalpatent/ES257244A1/en
Improvements in the manufacture of models for the casting, essentially characterized by providing the body or model with the two-piece stuffing, an upper one with a ring to facilitate the extraction once the molding is finished, and a lower one, with a conical section at its base, prolonged in a threaded segment, where it is fixed and threaded a screw captive of the cover or end for centering, interchangeable. (Machine-translation by Google Translate, not legally binding)
ES0257244A1960-04-091960-04-09Improvements in the manufacture of models for foundry (Machine-translation by Google Translate, not legally binding)
ExpiredES257244A1
(en)