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Máquina excavadora de zanjas, caracterizada esencialmente por el hecho de que comprende una estructura montada, en forma recambiable y sustituíble, en una cabina motriz y autopropulsada de tipo convencional, cuya estructura está formada por unos brazos articulados a la máquina, a los cuales está unido un cuerpo tubular de guía para deslizamiento vertical de la barra portadora de la cuchara, cuya barra es accionada mediante un sistema de doble cable arrollado a un tambor único, que actúa en sentidos opuestos.
ES463101A1977-10-111977-10-11Maquina excavadora de zanjas.
ExpiredES463101A1
(es)