The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented June 22, 1937

If an object in your hands says PAT. JUNE 22, 1937, it may be one of these.

PatentTitleInventorOf
US 2,084,943COIN OR SLUG SELECTOR DEVICE OR ATTACHMENTWilliam M. ChristopherTonawanda, New York

All dates