A paper currency receiving apparatus includes a body with a bill-receiving opening in a front end thereof, a detecting device mounted in the body and defining a bill passage through which a bill inserted into the bill-receiving opening passes, and a bill-collecting box for receiving the bill. The genuineness...http://www.google.de/patents/US20040149537?utm_source=gb-gplus-sharePatent US20040149537 - Paper currency receiving apparatus with fraud prevention
