Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440529 | Method and means for operating a drill for eliminating axial scratches during retraction | Samuel P. Henslee, John Logan | 1984-04-03 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4440529 | Method and means for operating a drill for eliminating axial scratches during retraction | Samuel P. Henslee, John Logan | 1984-04-03 |