Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848556 | Low power coin discrimination apparatus | Govind Shah, Andrew L. Pester | 1989-07-18 |
| 4846246 | Security gate operable with one hand | — | 1989-07-11 |
| 4838857 | Medical infusion device | Robert J. Strowe, Floyd V. Edwards | 1989-06-13 |