(under subclass 106) Amusement device wherein the seesaw includes a means for receiving the weight of a rider in a sitting position thereon (i.e., a chair or seat), and wherein the seesaw further includes a means for automatically keeping the rider sitting means level relative to the horizon during the up and down movement of the ends of the seesaw.
SEE OR SEARCH CLASS
114, Ships,
191+, for a self-leveling article of furniture intended for use on a ship, particularly subclass 194 for a chair which is
self-leveling during the rolling and tossing motions of a ship.
248, Supports, particularly
182.1, for a self-leveling article support in general.
