Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6302238 | Support structure for suspending a work surface below a girder | Mark A. Preusser | 2001-10-16 |
| 6227330 | Support structure for suspending a work surface below a girder | Mark A. Preusser | 2001-05-08 |