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Aparato eléctrico para hacer ranuras o rozas en las paredes, caracterizado por que está constituido esencialmente por un motor eléctrico provisto de un asa que hace girar a un eje flexible conducido dentro de un tubo, el cual eje comunica en su extremo con una rueda fresadora de material duro, que es la que efectúa la rozadura en el tabique.
ES0068914U1958-10-091958-10-09Aparato eléctrico para hacer ranuras o rozas en las paredes
ExpiredES68914Y
(es)