Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873895 | Manufacture of rotary drill bits | Malcolm R. Taylor, John D. Barr | 1989-10-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873895 | Manufacture of rotary drill bits | Malcolm R. Taylor, John D. Barr | 1989-10-17 |