Padlock Patent — Pin Tumbler
Inventor: De Rouville, Andrew R.; Miller, John G.
View on USPTO / Google Patents ↗This padlock was manufactured by Arder Products Co. | Classification: 70/200
| Patent Number | 1560251 |
|---|---|
| Issue Date | November 3, 1925 |
| Inventor | De Rouville, Andrew R.; Miller, John G. |
| Patent Type | Pin Tumbler |
| External Link | https://patents.google.com/patent/US1560251 ↗ |
