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Prado Hermanos y Cia SA
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Prado Hermanos y Cia SA
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Priority to ES284191ApriorityCriticalpatent/ES284191A3/es
Publication of ES284191A3publicationCriticalpatent/ES284191A3/es
Mejoras introducidas en el objeto de la patente principal num.238264 por perfeccionamientos en el cambiador de calor de superficies reflectoras variables