Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494466 | Valve seal construction with non-congruent side serrations | Thomas A. Hartman | 2002-12-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6494466 | Valve seal construction with non-congruent side serrations | Thomas A. Hartman | 2002-12-17 |