US PATENT SUBCLASS 442 / 323
.~.~ At least three layers

Current as of: June, 1999
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442 /   HD   FABRIC (WOVEN, KNITTED, OR NONWOVEN TEXTILE OR CLOTH, ETC.)

320  DF  FELT FABRIC {4}
321  DF  .~ From natural organic fiber (e.g., wool, etc.) {2}
323.~.~ At least three layers

DEFINITION

Classification: 442/323

At least three layers:

(under subclass 321) Subject matter wherein the fabric comprises at least two additional distinct layers.