US PATENT SUBCLASS 396 / 578
.~ Having testing, calibration, or indicating

Current as of: June, 1999
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396 /   HD   PHOTOGRAPHY

564  DF  FLUID-TREATING APPARATUS {18}
578.~ Having testing, calibration, or indicating

DEFINITION

Classification: 396/578

Having testing, calibration, or indicating:

(under subclass 564) Subject matter including an evaluation

of a fluid-treating operation or the presentation of the result of such evaluation to an operator.

SEE OR SEARCH THIS CLASS, SUBCLASS:

281+, for camera structure with indicator.