Patented December 30, 1930
If an object in your hands says PAT. DECEMBER 30, 1930, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 1,786,466 | COIN DEPOSITORY | Harry Walker | Oil City, Louisiana |
The Counterfeit Coin Detector Patent Archive
Every device ever patented to catch a bad coin
If an object in your hands says PAT. DECEMBER 30, 1930, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 1,786,466 | COIN DEPOSITORY | Harry Walker | Oil City, Louisiana |