US PATENT SUBCLASS 359 / 7
.~.~.~ Crystalline material


Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

1  DF  HOLOGRAPHIC SYSTEM OR ELEMENT {16}
3  DF  .~ Having particular recording medium {2}
4  DF  .~.~ Recyclable {3}
7.~.~.~ Crystalline material


DEFINITION

Classification: 359/7

Cyrstalline material:

(under subclass 4) Subject matter in which the recording material is either a single crystal or in polycrystalline form.