The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented March 10, 1908

If an object in your hands says PAT. MARCH 10, 1908, it may be one of these.

PatentTitleInventorOf
US 881,652COIN-CONTROLLED MECHANISM FOR TELEPHONE-BOXES AND THE LIKE.Francis X. BeePhiladelphia, Pennsylvania

All dates