The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented June 25, 1929

If an object in your hands says PAT. JUNE 25, 1929, it may be one of these.

PatentTitleInventorOf
US 1,718,829COIN-ASSORTING MECHANISM FOR FARE BOXESFrank G. MurrayChicago, Illinois

All dates