US PATENT SUBCLASS 349 / FOR 137
.~ With specified nonchemical characteristic of liquid crystal material (359/99)

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.~ With specified nonchemical characteristic of liquid crystal material (359/99) {3}
FOR 138  DF  .~.~> Within smectic phase (359/100)
FOR 139  DF  .~.~> Within cholestric phase (359/101)
FOR 140  DF  .~.~> Within nematic phase (359/102)

DEFINITION

Classification: 349/FOR.137

With specified nonchemical characteristic of liquid crystal material:

Foreign Art Collection wherein a specific property of the enclosed liquid crystal material unrelated to its chemical structure is recited.