Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877399 | Dental equipment cleaning apparatus and method | Glenn R. Frank | 1989-10-31 |
| 4834115 | Penile constrictor ring | — | 1989-05-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877399 | Dental equipment cleaning apparatus and method | Glenn R. Frank | 1989-10-31 |
| 4834115 | Penile constrictor ring | — | 1989-05-30 |