Patented March 29, 1892
If an object in your hands says PAT. MARCH 29, 1892, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 471,808 | COIN FREED OR ACTUATED MACHINE. | Helen Alicia Burt | London |
The Counterfeit Coin Detector Patent Archive
Every device ever patented to catch a bad coin
If an object in your hands says PAT. MARCH 29, 1892, it may be one of these.
| Patent | Title | Inventor | Of |
|---|---|---|---|
| US 471,808 | COIN FREED OR ACTUATED MACHINE. | Helen Alicia Burt | London |