Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247230 | Impact tool head with cutting blades | William E. Hart, James B. Hart | 2001-06-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6247230 | Impact tool head with cutting blades | William E. Hart, James B. Hart | 2001-06-19 |