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• U.S. Patent No. 8,777,510
• U.S. Patent No. 9,133,591
• U.S. Patent No. 9,145,652
• U.S. Patent No. 9,822,503
• U.S. Patent No. 10,214,866
• U.S. Patent No. 10,822,756
• Australia Patent No. 2012214158
• Japan Patent No. 5580489
• European Patent No. 2673420
• Canadian Patent No. 2825965
• Canadian Patent No. 2956644
• Canadian Patent No. 2956653
• New Zealand Patent No. 613739
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