US PATENT SUBCLASS 180 / 122
.~.~.~ With dynamic seal or fluid curtain

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}
122.~.~.~ With dynamic seal or fluid curtain

DEFINITION

Classification: 180/122

(under subclass 120) A vehicle wherein the working fluid is utilized to produce a fluid cushion which is at least in part, supplied from and confined by a dynamic seal or fluid curtain.