The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented November 13, 1906

If an object in your hands says PAT. NOVEMBER 13, 1906, it may be one of these.

PatentTitleInventorOf
US 835,851COIN-CONTROLLED SLOT OR VENDING MACHINE AND COIN-TESTING MECHANISM THEREFOR.Louis J. DisserChicago, Illinois

All dates