The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented March 30, 1943

If an object in your hands says PAT. MARCH 30, 1943, it may be one of these.

PatentTitleInventorOf
US 2,315,174APPARATUS FOR SEPARATING GENUINE FROM SPURIOUS COINSFred E. A. WallinChicago, Illinois

All dates