Original Assignee PTT LLC Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Grant Bolling Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active, expires Application number US13/432,140 Inventor A. Google Patents Symbol and reel substitution methods for multi-line slot machinesÄownload PDF Info Publication number US9022852B1 US9022852B1 US13/432,140 US201213432140A US9022852B1 US 9022852 B1 US9022852 B1 US 9022852B1 US 201213432140 A US201213432140 A US 201213432140A US 9022852 B1 US9022852 B1 US 9022852B1 Authority US United States Prior art keywords symbol replacement schema symbols reels Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. ![]() ![]() Google Patents US9022852B1 - Symbol and reel substitution methods for multi-line slot machines US9022852B1 - Symbol and reel substitution methods for multi-line slot machines
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