A progressive gaming system (10) which enables slot machines (100) at a variety of independent non-restricted gaming locations (casino sites) (80) to contribute to and compete for a set of common jackpots. The system (10) provides a secure and reliable real-time progressive system that is capable of...http://www.google.com/patents/US5611730?utm_source=gb-gplus-sharePatent US5611730 - Progressive gaming system tailored for use in multiple remote sites: apparatus and method
