The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented August 24, 1943

If an object in your hands says PAT. AUGUST 24, 1943, it may be one of these.

PatentTitleInventorOf
US 2,327,945APPARATUS FOR SEPARATING GENUINE FROM SPURIOUS COINSFred E. A. WallinChicago, Illinois

All dates