Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D347171 | Bag clip | John L. Center, David R. Swift | 1994-05-24 |
| D332220 | Bag clip | John L. Center | 1993-01-05 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D347171 | Bag clip | John L. Center, David R. Swift | 1994-05-24 |
| D332220 | Bag clip | John L. Center | 1993-01-05 |