Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7506877 | Bit or tool extension and method of making same | David L. Henderson | 2009-03-24 |
| 7172377 | Router or cutter bit chuck or extension | David L. Henderson | 2007-02-06 |
| 6318936 | Plunge router adjustment mechanism and method | David L. Henderson | 2001-11-20 |