US PATENT SUBCLASS 52 / 510
.~ Integral rear-seating ledge on 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}
510.~ Integral rear-seating ledge on facer

DEFINITION

Classification: 52/510

(under subclass 506) Structure wherein the facers each have a distinct projection monolithically formed therewith and extending from the rear face thereof which projection seats in or on the other structure.