The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented October 30, 1894

If an object in your hands says PAT. OCTOBER 30, 1894, it may be one of these.

PatentTitleInventorOf
US 528,277COIN-CONTROLLED MUSICAL TOY BANK.Henry W. PorterForestville, Connecticut

All dates