(under subclass 569) Subject matter wherein the projectile has an aerodynamic configuration intended to act in a manner such that when the projectile is thrown into the air by a person or a projecting device, the projectile moves along a continuous, looped path and, while remaining airborne, returns either directly to, or to a point in the vicinity of, the person or projecting device.
(1) Note. Merely throwing any kind of projectile (e.g., a baseball, etc.) vertically into the air so that it will return along substantially the same path to the thrower or merely throwing a projectile (e.g., a resilient ball, etc.)
against a surface so that it will rebound therefrom back along substantially the same path to the thrower does not mean the projectile has the unique aerodynamic properties of a boomerang and is, therefore, not proper for inclusion in this subclass.
