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Individual
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Individual
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Priority to ES487781ApriorityCriticalpatent/ES487781A0/es
Publication of ES8101257A3publicationCriticalpatent/ES8101257A3/es
Publication of ES487781A0publicationCriticalpatent/ES487781A0/es
ES487781A1980-01-081980-01-08Perfeccionamientos en los aparatos intercambiadores de calorentre un gas y un material en particulas
GrantedES487781A0
(es)