US PATENT SUBCLASS 52 / 661
.~.~ Perforated with attached filaments

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}
661.~.~ Perforated with attached filaments

DEFINITION

Classification: 52/661

(under subclass 660) Structure wherein the member is a perforated sheet and has filaments, e.g., wire or mesh, attached thereto usually to promote adherence to concrete.

SEE OR SEARCH THIS CLASS, SUBCLASS:

454, for an imperforate area plaster backer with an attached filament or mesh.

647, for a wire connected to "I" or "T" type member.