Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887607 | Apparatus for and method of spectral analysis enhancement of polygraph examinations | — | 1989-12-19 |
| 4865529 | Rotor transient positioning assembly | Robert F. Sutton | 1989-09-12 |