Coin checking device for discriminating denomination of a coin a
Coin checking device for use in a coin handling machine
Coin checking method and apparatus employing wave train comparis
Coin chute assembly
Coin collecting machine
Coin collecting mechanism with top coin slot and coin return fun
Coin control systems for automatic machines
Coin detection and validation means
Coin detection and validation means and method
Coin detection and validation means and method
Coin detection apparatus
Coin detection device
Coin detection device
Coin detection device
Coin detection device and associated method
Coin detection means including a current ramp generator
Coin detector
Coin detector and counter
Coin detector and identifier apparatus and method
Coin detector for use in a coin acceptor