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Trenor Y Cia
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Trenor Y Cia
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Priority to ES23979ApriorityCriticalpatent/ES23979A1/es
Publication of ES23979A1publicationCriticalpatent/ES23979A1/es
ES23979A1899-03-241899-03-24Una operación química para obtener colores rojos no solubles en el agua, utilizando la pirita de hierro o sus residuos.
ExpiredES23979A1
(es)
Un procedimiento mecánico químico de impermeabilización de terrenos con el fin de recoger en el campo aguas pluviales en condiciones de potabilidad para abastecer poblaciones.