US PATENT SUBCLASS 492 / 56
.~.~ With rubber or elastomer cover

Current as of: June, 1999
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492 /   HD   ROLL OR ROLLER

49  DF  CONCENTRIC LAYERED ANNULUS {3}
53  DF  .~ Specific composition {3}
56.~.~ With rubber or elastomer cover

DEFINITION

Classification: 492/56

With rubber or elastomer cover:

(under subclass 53) Roll which includes an outermost layer of an elastic solid polymer similar to natural rubber.