US PATENT SUBCLASS 84 / 193
.~.~.~.~.~ Materials

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
173  DF  .~ Stringed {10}
174  DF  .~.~ Pianos {19}
189  DF  .~.~.~ Resonance devices {3}
192  DF  .~.~.~.~ Sounding boards {4}
193.~.~.~.~.~ Materials

DEFINITION

Classification: 84/193

Sounding-boards made of unusual material, especially metal.