US PATENT SUBCLASS 267 / 93
.~.~ Panel comprises spring of varying capacities

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

80  DF  SPRING PANEL {9}
91  DF  .~ Spring panel comprises vertically oriented compressible coil springs {10}
93.~.~ Panel comprises spring of varying capacities

DEFINITION

Classification: 267/93

(under subclass 91) Device in which the various springs have different coefficients of resilience (because of differences in size, temper or material).