(under subclass 230) Device including a simulation of a rotating airfoil for propelling or supporting an aircraft, wherein motive power means or mechanical motion-transmitting means are provided for supplying power to rotate the
airfoil.
SEE OR SEARCH THIS CLASS, SUBCLASS:
37+, for flying toy having means to rotate a propeller which furnishes lift.
57+, for a flying toy having a motor driven propeller.
SEE OR SEARCH CLASS
416, Fluid Reaction Surfaces (i.e., Impellers), appropriate subclasses for an impeller or propeller, per se, or combined with a rotary drive, particular
120+, for plural impellers having independent supports.
