This padlock was manufactured by Wise Lock Co. Solomon Wise sold locks under the name of Ferro Co. also. | Classification: 70/227
| Patent Number | 2140489 |
|---|---|
| Issue Date | December 13, 1938 |
| Inventor | Wise, Solomon |
| Patent Type | Push Key |
| External Link | https://patents.google.com/patent/US2140489 ↗ |
