Useful writer, ambivalent. (Machine-translation by Google Translate, not legally binding)

摘要

Useful ambivalent writer, essentially characterized in that it comprises an axis surrounded by a row of tangential cylinders by their bases and capable of turning movement around said axis, each one of said cylinders having its external surface with a series of facets of same and/or different tonalities, destined to constitute alignments of facets of different colors, by means of the logical manipulation of the rotating cylinders that behave them. 2.utily ambivalent writer (Machine-translation by Google Translate, not legally binding)