US PATENT SUBCLASS 52 / 731.8
.~.~.~.~ Upright

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

720.1  DF  SHAFT (I.E., ELONGATED RIGID STRUCTURE) {15}
730.1  DF  .~ Longitudinally related striplike sections {5}
731.1  DF  .~.~ Structural support {2}
731.7  DF  .~.~.~ Having angular component (e.g., having L, T, Z cross-section) {2}
731.8.~.~.~.~ Upright

DEFINITION

Classification: 52/731.8

Upright:

(under subclass 731.7) Subject matter wherein the longitudinal axis of the elongated structure is vertical when it is in its final position.