US PATENT SUBCLASS 52 / 651.07
.~.~.~ Column, mast, 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  DF  .~.~ Vertically oriented (e.g., tower, etc.) {4}
651.07.~.~.~ Column, mast, etc. {2}
651.08  DF  .~.~.~.~> Internal transverse spacer for runners
651.09  DF  .~.~.~.~> Inclined struts or ties meeting at intermediate runner

DEFINITION

Classification: 52/651.07

Column, mast, etc.:

(under subclass 651.01) Subject matter wherein the unit is a slender supporting structure or electromagnetic radiation antenna.

SEE OR SEARCH THIS CLASS, SUBCLASS:

300+, for a vertical structure with a cap covering the upper terminus.