US PATENT SUBCLASS 29 / 896.2
.~ Sound device making

Current as of: June, 1999
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29 /   HD   METAL WORKING

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
896.2.~ Sound device making {4}
896.21  DF  .~.~> Hearing aid component making
896.22  DF  .~.~> Musical instrument or tuning fork making
896.23  DF  .~.~> Including diaphragm or support therefor
896.24  DF  .~.~> Phonograph component making

DEFINITION

Classification: 29/896.2

Sound device making:

(under subclass 592) Process for manufacturing a device especially adapted for producing, recording, amplifying, modifying, or otherwise altering a vibratory disturbance in a fluid or solid, which disturbance is capable of being detected by the organs of hearing.