04809837 is referenced by 80 patents and cites 12 patents.

This gift certificate has information recorded thereon for identifying a total face value vendible by the gift certificate and a predetermined base amount equal to or smaller than the total face value. The information recorded on a deposited gift certificate is read by a reading device. A validation device validates the total face value and the base amount of the deposited gift certificate in response to the read information. A vending permission judgement device prohibits, in reponse to an output of the validation device, at least vending of an article to which a vend price below the base amount has been assigned. By virtue of this arrangement, a purchaser of an article from a vending machine by using a gift certificate is not forced to make purchase of the entire total face value but has only to make purchase above the base amount in which case a change preferably is paid out.

Control device for a vending machine and gift certificate for use thereon
Application Number
Publication Number
Application Date
February 26, 1987
Publication Date
March 7, 1989
Yukichi Hayashi
Spensley Horn Jubas & Lubitz
Kabushiki Kaisha Nippon Coinco
G07F 7/02
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