Patented April 30, 1907
If an object in your hands says PAT. APRIL 30, 1907, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 852,111 | FRAUD-PREVENTIVE DEVICE FOR COIN MECHANISMS. | John Fritsche | Philadelphia, Pennsylvania |
The Counterfeit Coin Detector Patent Archive
Every device ever patented to catch a bad coin
If an object in your hands says PAT. APRIL 30, 1907, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 852,111 | FRAUD-PREVENTIVE DEVICE FOR COIN MECHANISMS. | John Fritsche | Philadelphia, Pennsylvania |