US PATENT SUBCLASS 180 / 126
.~ Rigid side walls

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

116  DF  SURFACE EFFECT VEHICLES (I.E., GROUND EFFECT MACHINES) {7}
126.~ Rigid side walls

DEFINITION

Classification: 180/126

(under subclass 116) A vehicle wherein the working fluid is contained, at least in part, by separate side walls which are substantially rigid under normal conditions of use, are rigidly connected to the vehicle and extended in the direction of movement of the vehicle.