US PATENT SUBCLASS 267 / 166.1
.~ Conical

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

166  DF  COIL {6}
166.1.~ Conical

DEFINITION

Classification: 267/166.1

Conical:

(under subclass 166) Spring device wherein the turns of the helix lie upon the surface of a cone.