This padlock was manufactured by Junkunc Brothers American Lock Co. Junkunc purchased American Lock Co. . | Classification: 70/39
| Patent Number | 1638264 |
|---|---|
| Issue Date | August 9, 1927 |
| Inventor | Junkunc, John |
| Patent Type | Wafer |
| External Link | https://patents.google.com/patent/US1638264 ↗ |
