US PATENT SUBCLASS 340 / 443
.~.~.~ By indirect detection means (e.g., height measurement)

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.~.~.~ By indirect detection means (e.g., height measurement) {1}
444  DF  .~.~.~.~> Relative wheel speed

DEFINITION

Classification: 340/443

By indirect detection means (e.g., height measurement):

(under subclass 442) Subject matter wherein the deviation from proper inflation pressure is determined from a measurement of a parameter other than air pressure.