Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951163 | Shaft coupling and shifting mechanism for pneumatic pump | Mark W. McCollough, Jim Bachman | 2005-10-04 |
| 6868774 | Shaft coupling and shifting mechanism for pneumatic pump | Mark W. McCollough, Jim Bachman | 2005-03-22 |