US PATENT SUBCLASS 446 / 57
.~ Having motor-driven propeller

Current as of: June, 1999
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446 /   HD   AMUSEMENT DEVICES: TOYS

34  DF  AERODYNAMICALLY SUPPORTED OR RETARDED {8}
57.~ Having motor-driven propeller {2}
58  DF  .~.~> Gear-driven or having plural propellers
59  DF  .~.~> Elastomeric motor (e.g., rubber band) {1}

DEFINITION

Classification: 446/57

Having motor-driven propeller:

(under subclass 34) Device including a rotating airfoil to provide forward thrust, and energy transducing or storing means for supplying power to rotate the airfoil.

(1) Note. Toy aircraft having engine starters which fall within the scope of this definition will be found in this and indented subclasses.

SEE OR SEARCH THIS CLASS, SUBCLASS:

33, for a propeller-driven tethered aircraft.

37+, for a toy aircraft having a propeller which provides vertical lift.

232, for a nonflying toy aircraft having a motor-driven propeller.