Padlock Patent — Keyed
Inventor: Armas Kalervo Niilola
View on USPTO / Google Patents ↗| Patent Number | 3499301 |
|---|---|
| Issue Date | 1967-08-10 |
| Inventor | Armas Kalervo Niilola |
| Assigned To | Wartsila Oy AB |
| Patent Type | Keyed |
| External Link | https://patents.google.com/patent/US3499301/en ↗ |
