Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5398945 | "Piston ring of ""Y"" cross-section" | William E. Martus | 1995-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5398945 | "Piston ring of ""Y"" cross-section" | William E. Martus | 1995-03-21 |