US PATENT SUBCLASS 52 / 452
.~.~ With transverse filament

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}
450  DF  .~ Corrugated {2}
452.~.~ With transverse filament

DEFINITION

Classification: 52/452

(under subclass 450) Structure including a filament, e.g., wire or cord, extending transversely of the ridges and grooves.