The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented November 6, 1934

If an object in your hands says PAT. NOVEMBER 6, 1934, it may be one of these.

PatentTitleInventorOf
US 1,979,377COIN TESTING AND EJECTING MECHANISM FOR VENDING MACHINESBenjamin W. FrySt. Louis, Missouri

All dates