Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4238642 | Angle-modulated stereo system | Charles B. Fisher | 1980-12-09 |
| 4227662 | Air turbulence reducer | Charles B. Fisher | 1980-10-14 |
| 4217748 | Safe wire rope | Charles B. Fisher | 1980-08-19 |
| 4205241 | Quantized modulation systems | Charles B. Fisher | 1980-05-27 |
| 4189207 | Deep focus fiber optic lens | Charles B. Fisher | 1980-02-19 |
| 4182932 | A-m stereo system | Charles B. Fisher | 1980-01-08 |