US PATENT SUBCLASS 351 / 231
.~.~.~ Removably attachable to eye glass frame

Current as of: June, 1999
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351 /   HD   OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING

200  DF  EYE EXAMINING OR TESTING INSTRUMENT {7}
222  DF  .~ Subjective type {7}
227  DF  .~.~ Including trial frame {4}
231.~.~.~ Removably attachable to eye glass frame

DEFINITION

Classification: 351/231

Removably attachable to eyeglass frame:

(under subclass 227) Subject matter where the frame structure is removably attachable to an eyeglass frame.