Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7886890 | Coin redemption machine having gravity feed coin input tray and foreign object detection system | John R. Blake, Douglas U. Mennie, Samuel F. Collura, John S. Lykowski | 2011-02-15 |