Patent US 4947097A
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| Patent number | US 4947097A (click link for details and documents via Google Patents) |
|---|---|
| Title | Automatic switching of motion control with tactile feedback |
| Inventors | Douglas K. Tao |
| Company | The Grass Valley Group, Inc. |
| Filing date | 1989-06-12 |
| Grant date | 1990-08-07 |