US PATENT SUBCLASS 52 / 507
.~ Grille panel facer

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

506.01  DF  SHEETLIKE ELEMENT ASSEMBLED PARALLEL TO EXISTING WALL, CEILING, OR FLOOR (E.G., INSULATING PANEL, SHEATHING) {10}
507.~ Grille panel facer

DEFINITION

Classification: 52/507

(under subclass 506) Structure in which the module is an openwork panel, e.g., grille or grating.

SEE OR SEARCH THIS CLASS, SUBCLASS:

660+, for a fabric or lattice openwork, per se.