| 摘要 |
A vending machine having promotional features, wherein a secured token is associated with a subset of all the items that can be vended, and validation of the token limits the items offered to the patron for his selection to only that subset of items. A first vending machine promotes a new product by the manufacturer of the new product distributing secure promotional tokens good for a free vend or a discount on the price of the new product. In a second vending machine, products from multiple manufacturers are separately promoted using distinct secure promotional tokens for each brand. In a third vending machine providing a plurality of time-metered services, a secure promotional token provides only a limited economy subset of services for the patron's selection from among the plurality of services.
|
