US PATENT SUBCLASS 246 / 321
.~.~.~.~ Tie or connecting rod

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

Internet Version by PATENTEC © 1999      Terms of Use


246 /   HD   RAILWAY SWITCHES AND SIGNALS

270 R  DF  VEHICLE-ENERGY ACTUATION {11}
314  DF  .~ Switches, automatic {6}
319  DF  .~.~ Trailing fly-back {1}
320 R  DF  .~.~.~ Spiral spring {2}
321.~.~.~.~ Tie or connecting rod

DEFINITION

Classification: 246/321

(under subclass 320) Subject matter having a single spiral spring located upon either the tie-rod or the connecting-rod.