Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827973 | One way flow valve | — | 1989-05-09 |
| 4811704 | Valve stem seal | Floyd V. Edwards | 1989-03-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827973 | One way flow valve | — | 1989-05-09 |
| 4811704 | Valve stem seal | Floyd V. Edwards | 1989-03-14 |