The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented June 22, 1943

If an object in your hands says PAT. JUNE 22, 1943, it may be one of these.

PatentTitleInventorOf
US 2,322,434COIN DETECTING APPARATUSAlbert E. Gebert and Floyd C. BlackWilmette, Illinois

All dates