US PATENT SUBCLASS 52 / 651.01
.~.~ Vertically oriented (e.g., tower, etc.)

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

633  DF  OPENWORK; E.G., TRUSS, TRELLIS, GRILLE, SCREEN, FRAME, OR REBAR CHAIR {12}
648.1  DF  .~ Three-dimensional space-defining {9}
651.01.~.~ Vertically oriented (e.g., tower, etc.) {4}
651.02  DF  .~.~.~> For electrical conductor (e.g., line-pole, line-tower, etc.) {2}
651.05  DF  .~.~.~> For supporting hoisting or boring equipment (e.g., derrick, gantry) {1}
651.07  DF  .~.~.~> Column, mast, etc. {2}
651.1  DF  .~.~.~> Scaffolding

DEFINITION

Classification: 52/651.01

Vertically oriented (e.g., tower, etc.):

(under subclass 648.1) Subject matter comprising a structure having imposing vertical dimensions.