US PATENT SUBCLASS 250 / 225
.~.~ Polarizing

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

200  DF  PHOTOCELLS; CIRCUITS AND APPARATUS {11}
216  DF  .~ Optical or pre-photocell system {11}
225.~.~ Polarizing

DEFINITION

Classification: 250/225

(under subclass 216) Subject matter having a polarizer in the optical path between light source and photocell.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements,

483+, for polarizers, per se.