Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Earl C. Michael | National Mine Service | 3 |
Part of Illinois
3 patents · 1 inventors · 5.8/1k pop.
Ranked #79,433 of 111,555 cities Top 75%
Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Earl C. Michael | National Mine Service | 3 |
Part of Illinois