US PATENT SUBCLASS 381 / 23.1
.~ Hearing aid


Current as of: June, 1999
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381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

1  DF  BINAURAL AND STEREOPHONIC {8}
23.1.~ Hearing aid


DEFINITION

Classification: 381/23.1

Hearing aid:

(under subclass 1) Subject matter having a small ambient sound reproducing system wherein two or mote output transducers transmit independent sound signals directly into the ear or skull for use by a hearing impaired individual to increase the sound level received by the ear (i.e., listening assistance.

SEE OR SEARCH THIS CLASS, SUBCLASS:

68+, and the search notes therein for hearing aids, in general.