US PATENT SUBCLASS 351 / 225
.~.~.~ With rotatable arm

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}
224  DF  .~.~ Perimeter type {2}
225.~.~.~ With rotatable arm

DEFINITION

Classification: 351/225

With rotatable arm:

(under subclass 224) Subject matter where the means for producing the test targets on the surface is a rotatable arm.