US PATENT SUBCLASS 52 / 656.8
.~.~ Grille-type insert

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}
656.1  DF  .~ Outside corner or peripherally bordered (i.e., framing, etc.) {5}
656.8.~.~ Grille-type insert

DEFINITION

Classification: 52/656.8

Grille-type insert:

(under subclass 656.1) Subject matter wherein the framed unit is, itself, openwork, such as a grid or grate.