US PATENT SUBCLASS 29 / 896.23
.~.~ Including diaphragm or support therefor

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

592  DF  METHOD OF MECHANICAL MANUFACTURE {54}
896.2  DF  .~ Sound device making {4}
896.23.~.~ Including diaphragm or support therefor

DEFINITION

Classification: 29/896.23

Including diaphragm or support therefor:

(under subclass 896.2) Process wherein the manufactured device (a) includes a thin disk whose vibrations convert electric signals to sound waves or sound waves to electric signals or (b) bears the weight of or holds in position such a disk.

SEE OR SEARCH CLASS

181, Acoustics, especially

148+, for a diaphragm and enclosure and subclasses 157+ for a diaphragm, per se, and/or mounting or suspension means therefor.