(under subclass 23) Subject matter wherein the acrobatic apparatus is an upright, elongated, slender framework or rod with its bottom end held in place while its opposite end serves as a support for the user and is capable of oscillating back and forth as desired by the user.
(1) Note. A tower or pole used for swinging upon with its bottom end held in place by another person is proper for this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
18, for a structurally similar flexible pole used to help launch a pole vaulter over a high bar.
