Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4187546 | Computer-controlled oil drilling rig having drawworks motor and brake control arrangement | Loren B. Sheldon, James R. Tomashek, Donald H. Ward | 1980-02-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4187546 | Computer-controlled oil drilling rig having drawworks motor and brake control arrangement | Loren B. Sheldon, James R. Tomashek, Donald H. Ward | 1980-02-05 |