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POWELL TRACY

US3 patents

Top patents by PatentIndex Score

US9005005B2Apr 14, 2015

Bingo gaming machine capable of selecting different bingo pools

POWELL TRACY9 citations82

US8262451B2Sep 11, 2012

Bingo system with discrete payout categories

POWELL TRACY9 citations82

US8932129B2Jan 13, 2015

Multi-play central determination system

POWELL TRACY16 citations80