Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6606893 | Roll grooving apparatus | James E. Hamm | 2003-08-19 |
| 6591652 | Roll grooving apparatus | James E. Hamm | 2003-07-15 |
| 6558025 | Method and apparatus for mounting a lamp | David Bellig, Peter Skadahl, Steve Stenzel | 2003-05-06 |