US PATENT SUBCLASS 73 / 1.54
.~.~.~.~ Coil spring

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

Internet Version by PATENTEC © 1999      Terms of Use


73 /   HD   MEASURING AND TESTING

1.01  DF  INSTRUMENT PROVING OR CALIBRATING {13}
1.42  DF  .~ Timing apparatus (e.g., fuse, camera, or shutter) {2}
1.43  DF  .~.~ Chronometer (e.g., clock, watch, or watch unbalance) {5}
1.53  DF  .~.~.~ With resilient element {1}
1.54.~.~.~.~ Coil spring {1}
1.55  DF  .~.~.~.~.~> Plural coil springs

DEFINITION

Classification: 73/1.54

Coil spring:

(under subclass 1.53) Subject matter wherein the resilient element is a spirally wound elastic member.

SEE OR SEARCH CLASS

267, Spring Devices,

166+, for coil springs, per se.