Following the popularity of instant coffee, a vending machine that dispenses hot coffee in just a few seconds is introduced on the market. It was launched by two mechanical engineers, Lloyd Rudd and K. C. Melikian. A few years later (by 1951), there were more 9000 coffee vending machines in the United States, made by several different companies.
Source: Pendergrast, M. (1999). Uncommon grounds. Basic Books.
| Drugs: | Caffeine (coffee, tea, cola, etc.) |
|---|---|
| Regions: | USA (United States of America) |
