Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7229451 | Skull clamp with load distribution indicators | James L. Day | 2007-06-12 |
| 6629982 | Three-pin skull clamp with load distribution indicators on the rocker arm | James L. Day | 2003-10-07 |