US PATENT SUBCLASS 428 / 64.9
.~.~.~.~ Thickness specified

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

64.1  DF  CIRCULAR SHEET OR CIRCULAR BLANK {8}
64.2  DF  .~ Recording medium or carrier {5}
64.4  DF  .~.~ Optical recording medium or carrier {5}
64.8  DF  .~.~.~ Coloring agent containing {1}
64.9.~.~.~.~ Thickness specified

DEFINITION

Classification: 428/64.9

Thickness specified:

(under subclass 64.8) Subject matter wherein the thickness of at least one layer or the overall product of the recording medium or carrier is specified.