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ZANINI ERNESTO
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ZANINI ERNESTO
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Publication of ES226010A1publicationCriticalpatent/ES226010A1/es
Mejoras introducidas en la construcción de válvulas de macho desmontable, caracterizadas por el hecho de estar provistas dichas válvulas de medios de accionamiento manual que permiten levantar el macho de su asiento antes de efectuar la maniobra de rotación del macho para abrir o cerrar la válvula.
ES0226010A1955-01-111956-01-10MEJORAS INTRODUCIDAS EN EN LA CONSTRUCCIoN DE VáLVULAS DE MACHO DESMONTABLE
ExpiredES226010A1
(es)