US PATENT SUBCLASS 84 / 153
.~.~.~.~.~ Trackers rigidly connected


Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
*  DD  .~ Automatic {13}
115  DF  .~.~ Selectors {8}
151  DF  .~.~.~ Trackers {6}
152  DF  .~.~.~.~ Double scale {1}
153.~.~.~.~.~ Trackers rigidly connected {2}
154  DF  .~.~.~.~.~.~> Pivotally mounted
155  DF  .~.~.~.~.~.~> With slide valves


DEFINITION

Classification: 84/153

The two rows of holes are in the same bar or in bars fixed together.