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KAISER WILLY
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KAISER WILLY
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Priority to ES0237050ApriorityCriticalpatent/ES237050A1/es
Publication of ES237050A1publicationCriticalpatent/ES237050A1/es
ES0237050A1957-08-091957-08-09Perfeccionamientos en la obtenciën de vigas ligeras de acero para pisos nervados de hormigën armado
ExpiredES237050A1
(es)