Top Inventors at Petersen Industries All Time
Showing 1–4 of 4 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | David H. Osburn | 4 |
| 2 | Lee F. Rathbun | 2 |
| 3 | John William Kregl | 1 |
| 3 | John Czerepka | 1 |
Showing 1–4 of 4 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | David H. Osburn | 4 |
| 2 | Lee F. Rathbun | 2 |
| 3 | John William Kregl | 1 |
| 3 | John Czerepka | 1 |