The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented November 12, 1895

If an object in your hands says PAT. NOVEMBER 12, 1895, it may be one of these.

PatentTitleInventorOf
US 549,534COMBINED PENCIL-HOLDER, ERASER-HOLDER, AND COIN-TESTER.Rudolph Wm. RiessPhiladelphia (Germantown), Pennsylvania

All dates