| Name | Street | Town | State | From | To |
|---|---|---|---|---|---|
| Robbins, W. E. |   | Roaring Spring | Pennsylvania | 1860s |   |
| Robbins, W. E. |   | Elk Run | Pennsylvania | 1860s |   |
| Patent | Date | Remarks |
|---|---|---|
|   |   |   |
| Contract | for |
|---|---|
|   |   |
| Product |
|---|
|
Made "Mule Ear" percussion carbines. |