US PATENT SUBCLASS 52 / 665
.~.~.~ Separate connector at crossing

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}
660  DF  .~ Fabric or lattice; e.g., indeterminate grating {7}
664  DF  .~.~ Intersecting strips or strands {3}
665.~.~.~ Separate connector at crossing

DEFINITION

Classification: 52/665

(under subclass 664) Structure in which the elements of the sets cross each other and there are separate connectors at plural crossings which hold the elements together.