The Counterfeit Coin Detector Patent Archive

Every device ever patented to catch a bad coin

Patented October 16, 1877

If an object in your hands says PAT. OCTOBER 16, 1877, it may be one of these.

PatentTitleInventorOf
US 196,168IMPROVEMENT IN COUNTERFEIT-COIN DETECTERS.William H. RiceNew York, New York

All dates