US PATENT SUBCLASS 340 / 825.24
.~.~ Of audio system
Current as of:
June, 1999
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340 /
HD
COMMUNICATIONS: ELECTRICAL
825
DF
SELECTIVE
{23}
825.22
DF
.~ Program control {2}
825.24
.~.~ Of audio system
DEFINITION
Classification: 340/825.24
Of audio systems:
(under subclass 825.22) Subject matter in which the results are intended to control various aspects of an audible signal producing system.
(1) Note. Included herein are selection of distinct audio messages.
SEE OR SEARCH THIS CLASS, SUBCLASS:
825.25, for nonprogram audio system control.