US PATENT SUBCLASS 84 / 151
.~.~.~ Trackers


Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ Automatic {13}
115  DF  .~.~ Selectors {8}
151.~.~.~ Trackers {6}
152  DF  .~.~.~.~> Double scale {1}
156  DF  .~.~.~.~> Duct closers
157  DF  .~.~.~.~> Modified for expression
158  DF  .~.~.~.~> Metal
159  DF  .~.~.~.~> Extensible
160  DF  .~.~.~.~> Pneumato-electric


DEFINITION

Classification: 84/151

Special forms or construction of the tracker or attachments thereto.