US PATENT SUBCLASS 303 / 193
.~.~ With sonar or radar type sensor

Current as of: June, 1999
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303 /   HD   FLUID-PRESSURE AND ANALOGOUS BRAKE SYSTEMS

121  DF  SPEED-CONTROLLED {44}
191  DF  .~ Odd condition or device detection (e.g., fluid or brake temperature, hill holder, anti-squeal controller, acoustic emission) {6}
193.~.~ With sonar or radar type sensor

DEFINITION

Classification: 303/193

With sonar or radar type sensor:

(under subclass 191) Odd condition in which the rate (or an obstruction) is found by a detector that operates in the (a) sonic or supersonic range, or (b) ultrahigh frequency or microwave part of the radio spectrum range.