Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4906160 | Loader support stand | Charles H. Kaufman, John R. McMillan | 1990-03-06 |
| 4875356 | Material fabricating mechanism | Peter W. Boardman | 1989-10-24 |
| 4533108 | Drafting table attachment | David A. Willer, John Rosbak | 1985-08-06 |