| http://www.w3.org/ns/prov#value | - The nozzle of the spraying gun must angularly moveaccording to a vertical and a horizontal axis so as to follow the exact shape of the surface to be treated including concealed corners.Furthermore, considering that the system is contemplated for treating different types of surfaces, its manipulation must be simple and the projected material quickly displaced.Prior ArtCanadian patent No. 521,075 ma
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