Patent US 4780763A
| Patent number | US 4780763A |
|---|---|
| Title | Video special effects apparatus |
| Inventors | Grant T. McFetridge, Randy K. Hall |
| Company | The Grass Valley Group, Inc. |
| Filing date | 1987-03-27 |
| Grant date | 1988-10-25 |
| Cites |
| Patent number | US 4780763A |
|---|---|
| Title | Video special effects apparatus |
| Inventors | Grant T. McFetridge, Randy K. Hall |
| Company | The Grass Valley Group, Inc. |
| Filing date | 1987-03-27 |
| Grant date | 1988-10-25 |
| Cites |