This padlock was made for the United States government | Classification: 70/364
| Patent Number | 3722241 |
|---|---|
| Issue Date | March 27, 1973 |
| Inventor | Sussina, Stan J. |
| Assigned To | Liquidonics Industries, Inc. |
| Patent Type | Wafer |
| External Link | https://patents.google.com/patent/US3722241 ↗ |