US PATENT SUBCLASS 213 / 174
.~.~.~ Rotating

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

75 R  DF  COUPLINGS {9}
77  DF  .~ Counterpart {2}
100 R  DF  .~.~ Interengaging hooks and knuckles {6}
174.~.~.~ Rotating

DEFINITION

Classification: 213/174

Wherein devices of the class indicated the hook or knuckle is adapted for rotation about its vertical axis.