| LC control no. | sh 85142620 |
|---|---|
| LC classification | HF5483 Commerce TJ1560 Mechanical engineering |
| Topical heading | Vending machines |
| See also | Coin-operated machines Concessions (Amusements, etc.) Retail trade--Equipment and supplies |
| Found in | Michigan State University, Agricultural Experiment Station and Cooperative Extension Service. Food and merchandise sales in pubic parks, 1959: p. 13 (vending machines, a type of concession) |
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