US PATENT SUBCLASS 52 / 740.4
.~.~.~ Longitudinal
Current as of:
June, 1999
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STATIC STRUCTURES (E.G., BUILDINGS)
720.1
DF
SHAFT (I.E., ELONGATED RIGID STRUCTURE)
{15}
740.1
DF
.~ Tension member (e.g., re-bar) {5}
740.3
DF
.~.~ Ribbed {2}
740.4
.~.~.~ Longitudinal
DEFINITION
Classification: 52/740.4
Longitudinal:
(under subclass 740.3) Structure wherein the ridges or grooves extend parallel to the longitudinal axis of the rod.