US PATENT SUBCLASS 52 / 581
.~ Edge-to-edge openwork panels

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

578  DF  MODULE OR PANEL HAVING DISCRETE EDGEWISE OR FACE-TO-FACE CONNECTING FEATURE {6}
581.~ Edge-to-edge openwork panels

DEFINITION

Classification: 52/581

(under subclass 578) Structure in which the panel units are grille or lattice-like panels.

SEE OR SEARCH THIS CLASS, SUBCLASS:

448, for an imperforate area plaster backer having sections with interengaging edges.

656.8+, for cornered or peripherally bordered frame, per se.

660+, for a residual fabric or lattice open work.

782.1+, for a perforate panel with attached disparate edging.