Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882553 | Microwave balun | Robert Davies, Percy W. Hoare | 1989-11-21 |
| 4873529 | Coplanar patch antenna | — | 1989-10-10 |
| 4863474 | Skeletal implants | Ian Brown, George J. J. Cremore | 1989-09-05 |
| 4854408 | Obstacle surmounting aid for tracked vehicle | David R. Beard, Christopher B. Hinchey | 1989-08-08 |
| 4825969 | Wide track vehicle | David W. King | 1989-05-02 |