Umbrella-improved sunbath (Machine-translation by Google Translate, not legally binding)

摘要

Umbrella-improved umbrella, which is essentially characterized by having in the direction of the generatrix, a plurality of ducts, associated or the surface of coverage, which are closed by their respective outer ends, and which are axially communicated with the hollow shaft of the realization, through a distribution element to which this and those converge. (Machine-translation by Google Translate, not legally binding)