Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6508461 | Method and apparatus for spring tensioning | Thomas P. Trevorrow, Albert E Zuccolotto | 2003-01-21 |
| 5911797 | Method and apparatus for spring tensioning | Thomas P. Trevorrow, Albert E Zuccolotto | 1999-06-15 |