US PATENT SUBCLASS 600 / 559
.~ Ear or testing by auditory stimulus

Current as of: June, 1999
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600 /   HD   SURGERY

300  DF  DIAGNOSTIC TESTING {38}
559.~ Ear or testing by auditory stimulus

DEFINITION

Classification: 600/559

Ear or testing by auditory stimulus:

(under subclass 300) Subject matter for evaluating a physical characteristic of the auditory or equilibrium control system or testing a reaction to sound stimulus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

544+, for apparatus which detects an electric signal of the brain resulting from sound stimulus.

SEE OR SEARCH CLASS

73, Measuring and Testing,

585, for audiometers for testing hearing.