US PATENT SUBCLASS 250 / 559.27
.~.~.~ Thickness


Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
559.01  DF  .~ With circuit for evaluating a web, strand, strip, or sheet {13}
559.19  DF  .~.~ Measuring dimensions {6}
559.27.~.~.~ Thickness {1}
559.28  DF  .~.~.~.~> With translucent material


DEFINITION

Classification: 250/559.27

Thickness:

(under subclass 559.19) Subject matter wherein the circuit output is indicative of the distance from the upper surface of the material to the lower surface of the material.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

381, for measuring of thickness of a material with an optical system.