US PATENT SUBCLASS 84 / 186.2
.~.~.~.~ Wrest planks
Current as of: June, 1999
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| 84 / | HD | MUSIC |
|
| 1 | DF | INSTRUMENTS {9} |
| 173 | DF | .~ Stringed {10} |
| 174 | DF | .~.~ Pianos {19} |
| 186.1 | DF | .~.~.~ Frames {1} |
| 186.2 |  | .~.~.~.~ Wrest planks |
DEFINITION
Classification: 84/186.2
Wrest planks:
(under subclass 186.1) Subject matter having improvements in the wrest planks.