Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869112 | Screw-driven actuator for test frame | Richard Bearden | 1989-09-26 |
| 4843888 | Self aligning test grip | Luther Elling Johnson, Carl G. Larsen | 1989-07-04 |
| 4809556 | Preloading clamp | — | 1989-03-07 |