US PATENT SUBCLASS 213 / 28
.~.~ Rotating friction elements

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


213 /   HD   RAILWAY DRAFT APPLIANCES

7  DF  CUSHIONED {9}
22  DF  .~ Combined spring and friction {8}
28.~.~ Rotating friction elements

DEFINITION

Classification: 213/28

(under subclass 22) Devices wherein the friction is generated by the rotative movement of friction elements.