US PATENT SUBCLASS 600 / 28
.~.~ Audio (e.g., heartbeat, "white noise", etc.)

Current as of: June, 1999
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600 /   HD   SURGERY

26  DF  SLEEP OR RELAXATION INDUCING THERAPY (e.g., direct nerve stimulation, hypnosis, analgesia) {1}
27  DF  .~ Sensory (e.g., visual, audio, tactile, etc.) {1}
28.~.~ Audio (e.g., heartbeat, "white noise", etc.)

DEFINITION

Classification: 600/28

Audio (e.g., heartbeat, "white noise", etc.):

(under subclass 27) Subject matter wherein the sensory stimulation produces effects only on the sense of hearing.

(1) Note. This subclass can include heartbeat sounds to provide security and well being for infants or so called "white noise" used for analgesic purposes as in dental drilling.