The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented January 16, 1894

If an object in your hands says PAT. JANUARY 16, 1894, it may be one of these.

PatentTitleInventorOf
US 512,758COIN OR CHECK CONTROLLED DELIVERY APPARATUSJohn W. SmallwoodCincinnati, Ohio

All dates