Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728159 | Stackable file storage unit | Jack Solomon, Monte L. Levin, Andrzej L. Soporowski | 1988-03-01 |
| 4573828 | Roof support suitable for use in mines | James B. Longford | 1986-03-04 |
| 4529464 | Process for manufacturing a food container by extrusion and vacuum forming | — | 1985-07-16 |