(under subclass 34) Device wherein the surface is in the shape of a flat or concave disk adapted to be spun and sailed through the air.
SEE OR SEARCH CLASS
473, Games Using Tangible Projectile,
569+, for an aerial projectile used for play of a game or sport, which projectile may be aerodynamically supported or retarded, particularly subclasses 588+ for a flying disc, ring, or saucer.