US PATENT SUBCLASS 73 / 8
.~ Wheel tread, tire, track, or roadway

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

7  DF  BY ABRASION, MILLING, RUBBING, OR SCUFFING {1}
8.~ Wheel tread, tire, track, or roadway

DEFINITION

Classification: 73/8

(under subclass 7) Subject matter in which any one of the following is the device tested: a wheel tread, tire, vehicle track or roadway.

SEE OR SEARCH THIS CLASS, SUBCLASS:

146+, for testing the same devices in other ways.