US PATENT SUBCLASS 73 / 121
BRAKE TESTING

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

121BRAKE TESTING {6}
122  DF  .~> Slidable platform
123  DF  .~> Roller or belt wheel support {3}
128  DF  .~> Road test attachment or adjunct
129  DF  .~> Vehicle installation
130  DF  .~> Single wheel rotating and resistance measuring means {1}
132  DF  .~> Brake depressor with measuring means

DEFINITION

Classification: 73/121

(under the class definition) Subject matter for measuring or testing the action of vehicle brakes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

7+, for testing the wear qualities of brake surfaces.

9+, for determining friction qualities.

39, for use of fluid pressure to test fluid pressure brake units or systems.