Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697738 | Spade-type boring bit having chamfered corner portions | Paul A. Stone, Rickey J. Thomas, Timothy T. McKenzie | 1997-12-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697738 | Spade-type boring bit having chamfered corner portions | Paul A. Stone, Rickey J. Thomas, Timothy T. McKenzie | 1997-12-16 |