A vend space allocation monitor apparatus and method for use with a vending system capable of vending from among a plurality of classes of selectable vendable products of product from a selected product class, which vending system has a plurality of product storage areas and an established vend space...http://www.google.com/patents/US5029098?utm_source=gb-gplus-sharePatent US5029098 - Vend space allocation monitor means and method
