US PATENT SUBCLASS 213 / 20
.~.~ Centering devices


Current as of: June, 1999
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213 /   HD   RAILWAY DRAFT APPLIANCES

7  DF  CUSHIONED {9}
12  DF  .~ Radially movable {5}
20.~.~ Centering devices {1}
21  DF  .~.~.~> Drawbar carriers


DEFINITION

Classification: 213/20

(under subclass 18) Devices wherein self-acting means are employed to move the draft devices into alignment with the center line of the car.