An apparatus and method for forming a sheet of material into a flower pot or flower pot cover with fins. The apparatus comprises a male mold, a female mold having an opening mating with the male mold, and means for moving the male mold into and out of the opening of the female mold with the sheet of...http://www.google.fr/patents/US5286247?utm_source=gb-gplus-shareBrevet US5286247 - Flower pot or flower pot cover with fins
