US PATENT SUBCLASS 340 / 444
.~.~.~.~ Relative wheel speed

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

425.5  DF  LAND VEHICLE ALARMS OR INDICATORS {11}
438  DF  .~ Internal alarm or indicator responsive to a condition of the vehicle {13}
442  DF  .~.~ Tire deflation or inflation {2}
443  DF  .~.~.~ By indirect detection means (e.g., height measurement) {1}
444.~.~.~.~ Relative wheel speed

DEFINITION

Classification: 340/444

Relative wheel speed:

(under subclass 443) Subject matter wherein the measured parameter is the relative rotational speed of two or more wheels of the vehicle.