Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31772 | Digital bearing indicator | Carl Gerst, Stig L. Rehnmark | 1984-12-18 |
| 4331960 | Automatic tracking methods and apparatus | Carl Gerst | 1982-05-25 |
| 4209791 | Antenna apparatus for bearing angle determination | Carl Gerst, Stig L. Rehnmark | 1980-06-24 |
| 4203114 | Digital bearing indicator | Carl Gerst, Stig L. Rehnmark | 1980-05-13 |