US PATENT SUBCLASS 351 / 229
.~.~.~ With plural lens carrier

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}
229.~.~.~ With plural lens carrier

DEFINITION

Classification: 351/229

With plural lens carrier:

(under subclass 227) Subject matter including frame structure for selectively supporting a plurality of different test lenses in series in separate spaced apart relation, and usually having open-topped ring-type holders.

(1) Note. The above test lens holders may comprise graduated axis scales, and may be adjusted for pupiliary distance and other facial requirements of different individuals.