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ES5838A1886-04-131886-04-13Mejoras en los aparatos para suministrar aire y regular la combustión en los hogares de calderas de vapor y otros.
ExpiredES5838A1
(es)
Mejoras en los aparatos para suministrar aire a los hogares de las calderas marítimas y de otras clases a fin de aumentar la eficiencia, disminuir el desperdicio de calor e impedir el recalentamiento de la parte interior del buque.