US PATENT SUBCLASS 356 / 424
.~.~ Drum or endless tape

Current as of: June, 1999
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356 /   HD   OPTICS: MEASURING AND TESTING

402  DF  BY SHADE OR COLOR {10}
421  DF  .~ With reflective multicolor chart or standard {2}
424.~.~ Drum or endless tape

DEFINITION

Classification: 356/424

Drum or endless tape:

(under subclass 421) Subject matter wherein the surfaces are in the form of a endless member such as a tape or a drum.