Bertsch; John P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Bertsch; John P..The latest application filed is for "musical entertainment system".
- Bertsch; John P. - Victoria CA
| Patent | Date |
|---|---|
| Musical entertainment system Grant 5,428,708 - Gibson , et al. June 27, 1 | 1995-06-27 |
| Method and apparatus for generating vocal harmonies Grant 5,301,259 - Gibson , et al. * April 5, 1 | 1994-04-05 |
| Method and apparatus for generating vocal harmonies Grant 5,231,671 - Gibson , et al. July 27, 1 | 1993-07-27 |
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