"<<All the machines that I checked today were manufactured by "Sierra Design Gaming.">> Correct me if I am wrong, but I think that is a subsidiary of IGT that manufactures "funny" games that wouldn't "pass" in NV."
I believe Sierra is owned by Bally Technologies (the old Alliance Gaming).
http://zone.msn.com/en/flexicon/default.htm?icid=flexicon_wltagline
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