US PATENT SUBCLASS 349 / 14
.~.~ For protection

Current as of: June, 1999
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349 /   HD   LIQUID CRYSTAL CELLS, ELEMENTS AND SYSTEMS

1  DF  LIQUID CRYSTAL SYSTEM {9}
13  DF  .~ Liquid crystal eyewear (glasses, goggles, etc.) {1}
14.~.~ For protection

DEFINITION

Classification: 349/14

For protection:

(under subclass 13) Subject matter wherein the liquid crystal cells operate to shield eyes from light/ electromagnetic radiation.

(1) Note. Included here are welding helmets, sunglasses, and laser eye protection devices.