US PATENT SUBCLASS 385 / 127
.~.~ Concentric

Current as of: June, 1999
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385 /   HD   OPTICAL WAVEGUIDES

123  DF  OPTICAL FIBER WAVEGUIDE WITH CLADDING {3}
126  DF  .~ Utilizing multiple core or cladding {1}
127.~.~ Concentric {1}
128  DF  .~.~.~> Where the second or further layer is a coating

DEFINITION

Classification: 385/127

Concentric:

(under subclass 126) Subject matter wherein the various core and cladding layers are nested cylinders.