US PATENT SUBCLASS 52 / 480
.~.~ With spacing sleeper or subflooring

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

474  DF  FACER HELD BY STIFFENER-TYPE FRAME {11}
479  DF  .~ Back-to-back facers spaced by concealed framing {2}
480.~.~ With spacing sleeper or subflooring

DEFINITION

Classification: 52/480

(under subclass 479) Structure including strips or a coextensive discrete section which spaces and supports the additional coextensive section laterally of (usually above) the principal construction formed by sustainers and modules.

SEE OR SEARCH THIS CLASS, SUBCLASS:

364+, for an anchored ground member acting as a screed or receiver for a penetrating fastener.