| Name | Street | Town | State | From | To |
|---|---|---|---|---|---|
| Schwingrouber, Louis | 49 Leonard street | New York | New York | 1839 | 1840 |
| Schwingrouber, Louis | 96 Reade street | New York | New York | 1845 | 1846 |
| Patent | Date | Remarks |
|---|---|---|
| Contract | for |
|---|---|
| Product |
|---|
|
Locksmith, see Longworth’s American Almanac 1839-1840 New-York and
Doggett’s New York City Directory for 1845 & 1846. |
