Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9713693 | Exhaust valve and method of manufacture therefore | William Edgar Parr, Eric A. Lieberman | 2017-07-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9713693 | Exhaust valve and method of manufacture therefore | William Edgar Parr, Eric A. Lieberman | 2017-07-25 |