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Perfeccionamientos en los empalmes de acoplamiento para tuberías, caracterizado porque este empalme contiene elementos metálicos arreglados para formar un puente conductor de electricidad entre dos tubos o tubos consecutivos, estando ese puente en contacto con las partes metálicos de los tubos en vista de la evacuación de toda carga electrostática hacia la tierra.
ES0227551A1955-06-221956-03-26Perfeccionamientos en los empalmes de acoplamiento para tuberias.
ExpiredES227551A1
(es)