Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8052359 | Countersink assembly | John Wirth, Jr., Paul Brutsman, Mark K. McCool | 2011-11-08 |
| 7886641 | Push block having retractable heel | John Wirth, Jr., Paul Brutsman, Dan Stoops | 2011-02-15 |