US PATENT SUBCLASS 84 / 187
.~.~.~ String plates and sounding boards

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
173  DF  .~ Stringed {10}
174  DF  .~.~ Pianos {19}
187.~.~.~ String plates and sounding boards

DEFINITION

Classification: 84/187

Improvements in the two features.