Top Inventors at National Oilwell (U.K.) Limited 1989
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | William S. Cowan | 1 |
| 1 | Robert E. Hart | 1 |
| 1 | Edwin R. Knerr | 1 |
Showing 1–3 of 3 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | William S. Cowan | 1 |
| 1 | Robert E. Hart | 1 |
| 1 | Edwin R. Knerr | 1 |