The Development Status of Foreign Vending Machines
Vending machines first appeared in the United States and Europe in the 1960s. At that time, people could buy chewing gum in cents from the vending machine in the subway system in the United States. This was the earliest vending machine. As a brand-new retail method, vending machines have been rapidly popularized and developed in developed countries such as the United States and Europe since the 1980s. They are characterized by high technology, integrating optical, mechanical, electrical,...