US PATENT SUBCLASS 52 / 252
.~.~ Distinct horizontal sustainers between columns

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

250  DF  INTERSECTION OF A CAST STONELIKE COMPONENT (E.G., CONCRETE FLOOR OR WALL) TO ANOTHER COMPONENT (E.G., WALL) {4}
251  DF  .~ Cast reinforced vertical and horizontal members {2}
252.~.~ Distinct horizontal sustainers between columns

DEFINITION

Classification: 52/252

(under subclass 251) Structure in which the horizontal component is an elongated sustainer, e.g., a beam or a ribbed cast slab.