An improved apparatus and method of storing and selectively retrieving and delivering product data is disclosed. Product data files, product lists, product directories and allowable customer data entry sets are stored in a data storage device. The customer is asked to specify one or more criteria relating...http://www.google.de/patents/US5726898?utm_source=gb-gplus-sharePatent US5726898 - Method and apparatus for storing and selectively retrieving and delivering product data based on embedded expert judgements 
