Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822056 | Adjustable rotary shaft seal | — | 1989-04-18 |
| 4809992 | Rotary shaft seal assembly | Dennis E. Kemp, Jr. | 1989-03-07 |
| 4802485 | Sleep apnea monitor | Gunther W. Kienle | 1989-02-07 |