Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887502 | Machine for slitting metal sheet | — | 1989-12-19 |
| 4751838 | Machine and process for leveling sheet metal strip | — | 1988-06-21 |
| 4319863 | Grain trailer and bin | — | 1982-03-16 |
| 4312325 | Solar heating system | Elroy Schoenbeck, Mark F. O'Hara, Thomas Schmitt | 1982-01-26 |