| Name | Street | Town | State | From | To |
|---|---|---|---|---|---|
| Wirth, John |   | Philadelphia | Pennsylvania | 1874 | 1893 |
| Patent | Date | Remarks |
|---|---|---|
| 490,129 | January 17, 1893 | Recoil-Check for Fire-Arms, John W. Tredway and John Wirth patent Patent drawing Specification |
| Contract | for |
|---|---|
|   |   |
| Product |
|---|
|
|