Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6755590 | Box tube clamping system | Richard L. Luetzow | 2004-06-29 |
| 6672008 | Gate release mechanism having a pivotable arm to facilitate maintenance | Richard L. Luetzow | 2004-01-06 |