US PATENT SUBCLASS 446 / 165
.~.~.~.~ And screw propeller rotated by motor

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

153  DF  AQUATIC {3}
160  DF  .~ Boat {2}
163  DF  .~.~ Having propulsion means {1}
164  DF  .~.~.~ Mechanical motor {1}
165.~.~.~.~ And screw propeller rotated by motor

DEFINITION

Classification: 446/165

And screw propeller rotated by motor:

(under subclass 164) Device wherein the mechanism includes a thrust-providing member revolved about an axis which coincides with the direction of thrust of the member and having helically shaped blades about said axis which contact the water to move the vehicle therethrough.