Knox; John D.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Knox; John D..The latest application filed is for "drill bit blade for masonry and rock drill".
- Knox; John D. - Louisville KY
| Patent | Date |
|---|---|
| Drill bit blade for masonry and rock drill Grant 4,984,944 - Pennington, Jr. , et al. January 15, 1 | 1991-01-15 |
| Drill having means for locating cutting bit in a bit holder Grant 4,633,959 - Knox January 6, 1 | 1987-01-06 |
| Screwdriver Grant 3,739,825 - Knox June 19, 1 | 1973-06-19 |
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