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TALLERES SAN MIGUEL SL
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TALLERES SAN MIGUEL SL
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Priority to ES0160961ApriorityCriticalpatent/ES160961A2/es
Publication of ES160961A2publicationCriticalpatent/ES160961A2/es
Structures Of Non-Positive Displacement Pumps
(AREA)
Abstract
Mejoras introducidas en el objeto de la patente principal número 152.828 caracterizadas porque la piedra artificial o pasta en que se embute la espiral puede protegerse con una envolvente de hierro o acero fundido con o sin aleaciones de otros metales.
ES0160961A1943-03-311943-03-31MEJORAS INTRODUCIDAS EN EL OBJETO DE LA PATENTE PRINCIPAL NuMERO 152828
ExpiredES160961A2
(es)
Perfeccionamientos introducidos en la construcción de viguetas, fabricadas a base de lementos cerámicos, unidos mediante armadura de hierro y hormigón, que pueden ser transportadas una vez montadas, sin peligro de rotura ni deformación