 Current U.S. Class: |
181/135: ACOUSTICS; ANATOMIC OR PROSTHETIC RELATION; Ear and mouth; Auditory canal insert; Ear insert
128/866: SURGERY; BODY PROTECTING OR RESTRAINING DEVICES FOR PATIENTS OR INFANTS (E.G., SHIELDS, IMMOBILIZERS); Head or face protector (e.g., lips, ears, etc.); Aural protectors (e.g., ear); External ear or head mounting means
351/158: OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING; SPECTACLES AND EYEGLASSES; Combined
381/327: ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES; HEARING AIDS, ELECTRICAL; Specified casing or housing; Spectacle
381/330: ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES; HEARING AIDS, ELECTRICAL; Specified casing or housing; Hook over ear
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