Padlock Patent — Push Key
Inventor: Williams, Charles D.
View on USPTO / Google Patents ↗Ward for push key padlocks. This patent may have been assigned to Racine Hardware Mfg. Co. | Classification: 70/427
| Patent Number | 412867 |
|---|---|
| Issue Date | October 15, 1889 |
| Inventor | Williams, Charles D. |
| Patent Type | Push Key |
| External Link | https://patents.google.com/patent/US412867 ↗ |
