US PATENT SUBCLASS 250 / 558
.~.~ Stereoplotters

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

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
206  DF  .~ Photocell controlled circuit {9}
558.~.~ Stereoplotters

DEFINITION

Classification: 250/558

(under subclass 206) Subject matter including one or more photocells responsive to stereoscopically related images.

SEE OR SEARCH THIS CLASS, SUBCLASS:

550, for photocell apparatus responsive to the interference patterns which ultimately may be employed to examine contours.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

2, for stereoplotters wherein an actual plot of contours is provided from a stereo-pair.