US PATENT SUBCLASS 404 / 123
.~.~ Three tandem rollers

Current as of: June, 1999
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404 /   HD   ROAD STRUCTURE, PROCESS, OR APPARATUS

83  DF  APPARATUS {17}
122  DF  .~ Rotating drum, roller or tire {10}
123.~.~ Three tandem rollers

DEFINITION

Classification: 404/123

(under subclass 122) Roller device wherein a trio of rollers, with generally parallel axes, are arranged one behind the other.