Slot machines and other devices are arranged to interact with the...http://www.google.com/patents/US7267614?utm_source=gb-gplus-sharePatent US7267614 - Gaming token having a variable valueAdvanced Patent SearchPublication numberUS7267614 B1Publication typeGrantApplication numberUS 09/597,801Publication dateSep 11, 2007Filing dateJun 20, 2000Priority dateMay 10, 2000Fee statusPaidAlso published asU