Padlock Patent — Push Key
Inventor: Ratzlaff, Rudolph
View on USPTO / Google Patents ↗Classification: 70/38C
| Patent Number | 2527850 |
|---|---|
| Issue Date | October 31, 1950 |
| Inventor | Ratzlaff, Rudolph |
| Patent Type | Push Key |
| External Link | https://patents.google.com/patent/US2527850 ↗ |
