US PATENT SUBCLASS 267 / 72
.~.~.~ Drawbars inclosed

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

Internet Version by PATENTEC © 1999      Terms of Use


267 /   HD   SPRING DEVICES

69  DF  ELASTIC EXTENSION DEVICES {2}
70  DF  .~ Compression spring {1}
71  DF  .~.~ Single {1}
72.~.~.~ Drawbars inclosed

DEFINITION

Classification: 267/72

(under subclass 71) Structure wherein the single spring element incloses a plurality of draw-bars.