US PATENT SUBCLASS 250 / 341.3
.~.~.~.~ Including polarizing means

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

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
338.1  DF  .~ Infrared responsive {12}
340  DF  .~.~ Methods {2}
341.1  DF  .~.~.~ With irradiation or heating of object or material {7}
341.3.~.~.~.~ Including polarizing means

DEFINITION

Classification: 250/341.3

Including polarizing means:

(under subclass 341.1) Subject matter having means to polarize infrared radiation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

225, for optical or pre-photocell systems with means for polarizing visible light.

SEE OR SEARCH CLASS

356, Optics: Measuring and Testing,

364+, for polarized light examination.

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

483+, for polarizers, per se.