The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented May 27, 1930

If an object in your hands says PAT. MAY 27, 1930, it may be one of these.

PatentTitleInventorOf
US 1,760,579METHOD OF AND MEANS FOR TESTING COINSFrederic H. BrinkerhoffBelleville, New Jersey

All dates