| http://www.w3.org/ns/prov#value | - Feature and advantages of a vending system in accordance with the present invention will become apparent from the following description, taken in conjunction with the accompanying drawings, in which: FIG. 1 is a schematic diagram indicative of the general nature of a vending system, FIG. 2 is a circuit diagram of one embodiment of an element of the apparatus shown in FIG. 1, and FIG. 3 is a circui
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