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Individual
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Priority to ES170261ApriorityCriticalpatent/ES170261A1/es
Publication of ES170261A1publicationCriticalpatent/ES170261A1/es
ES170261A1945-06-211945-06-21Perfeccionamientos en el procedimiento de construcción de vigas para suelos y cielos rasos de hormigón armado
ExpiredES170261A1
(es)