DeVall; Donald L.
Patent Applications and Registrations
Patent applications and USPTO patent grants for DeVall; Donald L..The latest application filed is for "reamer bit".
- DeVall; Donald L. - Morgantown WV
| Patent | Date |
|---|---|
| Drill head assembly Grant 7,520,341 - DeVall April 21, 2 | 2009-04-21 |
| Reamer bit Grant 7,513,319 - DeVall April 7, 2 | 2009-04-07 |
| Reamer bit App 20070251727 - DeVall; Donald L. | 2007-11-01 |
| Impact measuring game ball Grant 7,273,431 - DeVall September 25, 2 | 2007-09-25 |
| Drill bit Grant 7,228,922 - DeVall June 12, 2 | 2007-06-12 |
| Drill head assembly Grant 6,695,071 - DeVall February 24, 2 | 2004-02-24 |
| Apparatus for repairing chains Grant 4,506,501 - DeVall , et al. March 26, 1 | 1985-03-26 |
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