Padlock Patent — Combo+Keyed
Inventor: Frederic K Heyer
View on USPTO / Google Patents ↗| Patent Number | 2378768 |
|---|---|
| Issue Date | 1943-11-27 |
| Inventor | Frederic K Heyer |
| Assigned To | Yale and Towne Manufacturing Co |
| Patent Type | Combo+Keyed |
| External Link | https://patents.google.com/patent/US2378768/en ↗ |