Padlock Patent — Keyed
Inventor: Charles S Schroeder
View on USPTO / Google Patents ↗| Patent Number | 1543397 |
|---|---|
| Issue Date | 1924-07-29 |
| Inventor | Charles S Schroeder |
| Assigned To | Yale and Towne Manufacturing Co |
| Patent Type | Keyed |
| External Link | https://patents.google.com/patent/US1543397/en ↗ |