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Individual
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Individual
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Priority to ES148263ApriorityCriticalpatent/ES148263A1/es
Publication of ES148263A1publicationCriticalpatent/ES148263A1/es
ES148263A1940-03-271940-03-27Un procedimiento perfeccionado para la construcción de estructuras y pisos mixtos de hormigón y acero
ExpiredES148263A1
(es)