US PATENT SUBCLASS 213 / 27
.~.~.~ Rotating friction elements

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}
26  DF  .~.~ Differential spring compression {1}
27.~.~.~ Rotating friction elements

DEFINITION

Classification: 213/27

(under subclass 26) Devices wherein the friction is generated by rotative movement of friction elements.