US PATENT SUBCLASS 434 / 221
.~ Audiometry

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

219  DF  OCCUPATION {8}
221.~ Audiometry

DEFINITION

Classification: 434/221

Audiometry:

(under subclass 219) Subject matter relating to the skill of determining a patient's hearing ability, e.g.., instruction in the use of an audiometer.