US PATENT SUBCLASS 52 / 652.1
.~.~ Triangular lattice

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}
652.1.~.~ Triangular lattice

DEFINITION

Classification: 52/652.1

Triangular lattice:

(under subclass 648.1) Subject matter including three-sided, bracing modules.