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PitchLock Incorporated
| PitchLock Incorporated Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20100288103 | Compact device for adjusting piano key touch weight - A series of adjustable springs, rigidly suspended above the keys of a piano, provides a downward force which reduces the effort needed to depress the keys. Precise adjustment of the series, and its attachment to the piano are facilitated through the use of existing fastener hardware within the conventional piano architecture. | 11-18-2010 |