US PATENT SUBCLASS 381 / 60
.~ Testing of hearing aids

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


381 /   HD   ELECTRICAL AUDIO SIGNAL PROCESSING SYSTEMS AND DEVICES

58  DF  MONITORING/MEASURING OF AUDIO DEVICES {2}
60.~ Testing of hearing aids

DEFINITION

Classification: 381/60

Testing of hearing aids:

(under subclass 58) Subject matter in which at least part of a hearing aid is tested.

(1) Note. A hearing aid is a small audio reproducing system for the hard of hearing.

SEE OR SEARCH THIS CLASS, SUBCLASS:

68+, for hearing aids.

SEE OR SEARCH CLASS

73, Measuring and Testing,

570+, for measuring vibration including sound waves.

324, Electricity: Measuring and Testing, for electrical testing or measuring in general. 370, Multiplex Communications,

241+, for multiplex testing.

455, Telecommunications,

67.1+, for modulated carrier system testing: subclasses 115+ for transmitter testing; and subclasses 226.1+ for receiver testing.