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Mejoras introducidas en la fijación de canaletas, caracterizdas porque van sustentadas mediante unos cartabones de proporciones adecuadas ó mediante unas pletinas en forma de escuadra con su extremo horizontal arqueado para abrazar la barra longitudinal extrema de la base de la canaleta; la parte vertical de esta escuadra posee unos orificios para su anclaje.
ES1970158158U1970-04-291970-04-29Mejoras introducidas en la fijacion de canaletas.
ExpiredES158158Y
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