US PATENT SUBCLASS 52 / 444
.~ Block-type backer with integral facing receiving feature

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

443  DF  WITH MEANS (E.G., APERTURES, PROJECTIONS) FOR RECEIVING SETTABLE MATERIAL FACING (E.G., PLASTER) {8}
444.~ Block-type backer with integral facing receiving feature

DEFINITION

Classification: 52/444

(under subclass 443) Structure including juxtaposed block-like units having integral means on an exposed face for retaining settable material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

422, for constructions of modules bonded to an internal cast section which modules have a settable material retaining feature on an exposed face.

605, for block having grooves on a juncture surface.