US PATENT SUBCLASS 213 / 36
.~.~.~ Shoes and wedges

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

7  DF  CUSHIONED {9}
22  DF  .~ Combined spring and friction {8}
35  DF  .~.~ Central friction post {1}
36.~.~.~ Shoes and wedges

DEFINITION

Classification: 213/36

(under subclass 35) Devices wherein the wedges are employed to force shoes into engagement with the friction post.