| Name | Street | Town | State | From | To |
|---|---|---|---|---|---|
| Langstroth & Company, Field | Philadelphia | Pennsylvania | 1846 | 1880 |
| Patent | Date | Remarks |
|---|---|---|
| Contract | for |
|---|---|
| Product |
|---|
|
See Field, Langstroth & Company Maker of Deringer-Style Pocket Pistols .44 caliber percussion, Philadelphia Style Deringer, 4 1/8" barrel |
