Top Inventors at Derrick Manufacturing 1989
Showing 1–4 of 4 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | James W. Derrick | 2 |
| 2 | William W. Derrick | 1 |
| 2 | L. Charles Matsch | 1 |
| 2 | Robert G. Derrick | 1 |
Showing 1–4 of 4 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | James W. Derrick | 2 |
| 2 | William W. Derrick | 1 |
| 2 | L. Charles Matsch | 1 |
| 2 | Robert G. Derrick | 1 |