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Individual
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Individual
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Priority to ES68473ApriorityCriticalpatent/ES68473A1/es
Publication of ES68473A1publicationCriticalpatent/ES68473A1/es
ES68473A1918-12-091918-12-09Un procedimiento perfeccionado para soldar, o reparar objetos de metal, por medio del arco eléctrico.
ExpiredES68473A1
(es)