Coin checking device for use in a coin handling machine
Coin checking method and apparatus employing wave train comparis
Coin chute
Coin chute assembly
Coin chute with optical coin discrimination
Coin collecting machine
Coin collecting mechanism with top coin slot and coin return fun
Coin collection device
Coin control systems for automatic machines
Coin controlled compressed air-actuated atomizer
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