US PATENT SUBCLASS 188 / 37
.~.~.~.~ Roller shoe
Current as of: June, 1999
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| 188 / | HD | BRAKES |
|
| 2 R | DF | VEHICLE {19} |
| 33 | DF | .~ Railway {15} |
| 35 | DF | .~.~ Wheel and rail {1} |
| 36 | DF | .~.~.~ Chock {1} |
| 37 |  | .~.~.~.~ Roller shoe |
DEFINITION
Classification: 188/37
The shoe-chock is in the form of a roller.