US PATENT SUBCLASS 180 / 121
.~.~.~ With plural cushions

Current as of: June, 1999
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180 /   HD   MOTOR VEHICLES

116  DF  SURFACE EFFECT VEHICLES (I.E., GROUND EFFECT MACHINES) {7}
117  DF  .~ Having propulsion or control means {3}
120  DF  .~.~ Integrated with working fluid {2}
121.~.~.~ With plural cushions

DEFINITION

Classification: 180/121

(under subclass 120) A vehicle wherein the working fluid is utilized to produce a plurality of separate fluid cushions.