US PATENT SUBCLASS 349 / FOR 139
.~.~ Within cholestric phase (359/101)

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

193  DF  LIQUID CRYSTAL OPTICAL ELEMENT {21}
FOR 137  DF  .~ With specified nonchemical characteristic of liquid crystal material (359/99) {3}
FOR 139.~.~ Within cholestric phase (359/101)

DEFINITION

Classification: 349/FOR.139

Within cholesteric phase:

Foreign Art Collection wherein the characteristic recited is

that of a liquid crystal within the cholesteric mesophase.