Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4565941 | Oscillatory drive mechanisms for a ring laser gyro | John A. Geen | 1986-01-21 |
| 4217168 | Magnetic core formed from laminations | Derek F. Case | 1980-08-12 |
| 4199382 | Magnetic material | Derek F. Case | 1980-04-22 |
| 4188247 | Manufacture of magnetic transducing heads | Derek F. Case | 1980-02-12 |