Padlock Patent — Push Key
Inventor: Bramble, William H..
View on USPTO / Google Patents ↗Classification: 70/352
| Patent Number | 175818 |
|---|---|
| Issue Date | April 11, 1876 |
| Inventor | Bramble, William H.. |
| Assigned To | Russell & Erwin Mfg. Co. |
| Patent Type | Push Key |
| External Link | https://patents.google.com/patent/US175818 ↗ |