US PATENT SUBCLASS 600 / 558
.~ Eye or testing by visual stimulus
Current as of:
June, 1999
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600 /
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SURGERY
300
DF
DIAGNOSTIC TESTING
{38}
558
.~ Eye or testing by visual stimulus
DEFINITION
Classification: 600/558
Eye or testing by visual stimulus:
(under subclass 300) Subject matter for evaluating a physical characteristic of the visual system or testing a reaction to visual stimulus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
398, for apparatus for determining pressure in an eyeball.
544+, for apparatus which detects an electric signal of the brain resulting from visual stimulus.
SEE OR SEARCH CLASS
351, Optics: Eye Examining, Vision Testing and Correcting,
6+, for ophthalmoscopes and retinoscopes.
