US PATENT SUBCLASS 340 / 453
.~.~ Brake or clutch condition

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}
453.~.~ Brake or clutch condition {1}
454  DF  .~.~.~> Wear

DEFINITION

Classification: 340/453

Brake or clutch condition:

(under subclass 438) Subject matter wherein the specific condition is a physical property of the vehicle brake, or clutch, system.