US PATENT SUBCLASS 84 / 202
.~.~.~.~ Locking devices

Current as of: June, 1999
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84 /   HD   MUSIC

1  DF  INSTRUMENTS {9}
173  DF  .~ Stringed {10}
174  DF  .~.~ Pianos {19}
200  DF  .~.~.~ Tuning devices {7}
202.~.~.~.~ Locking devices {1}
203  DF  .~.~.~.~.~> Involving two pins

DEFINITION

Classification: 84/202

Pins with means for locking them or for increasing the friction.