The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented November 30, 1943

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

PatentTitleInventorOf
US 2,335,369APPARATUS FOR SEPARATING GENUINE FROM SPURIOUS COINSFred E. A. WallinUniversity City, Missouri

All dates