US PATENT SUBCLASS 52 / 651.08
.~.~.~.~ Internal transverse spacer for runners

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  DF  .~.~.~ Column, mast, etc. {2}
651.08.~.~.~.~ Internal transverse spacer for runners

DEFINITION

Classification: 52/651.08

Internal transverse spacer for runners:

(under subclass 651.07) Structure including an elongated shaft (e.g., mast or beam) the longitudinally extending elements of which are connected by internal, transversely disposed spacers.