How does the vending machine work?

website vending machine coin slot Vintage Vending Machine Coin Slot 20 cents Greenwald ABT ; Brand Greenwald ; OriginalReproduction Original ; Accurate description ; Reasonable shipping cost vending machine money slot Coin Operated Vending Machine · Atlantis Classic 4 Lane Tea and Coffee Coin Operated Vending Machine · Initiative Coin Operated Vending Machine, Voltage : 150-

vending machine coin slot Picture of close up metal coin slot of vending machine stock photo, images and stock photography Image 47435010   Vintage Vending Machine Coin Slot 20 cents Greenwald ABT ; Brand Greenwald ; OriginalReproduction Original ; Accurate description ; Reasonable shipping cost   Each sensor is composed of A diode transmitter and a receiving sensor are formed When a coin passes through the sensor, it will block the light

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