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High efficiency toilet
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Patent number 11,987,967
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Issue date May 21, 2024
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Patrick Gerard Stack
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E03 - WATER SUPPLY SEWERAGE
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Anti-overflow toilet
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Patent number 11,591,782
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Issue date Feb 28, 2023
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Penguin Products, LLC
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Patrick Gerard Stack
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E03 - WATER SUPPLY SEWERAGE
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Anti-overflow toilet
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Patent number 11,118,335
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Issue date Sep 14, 2021
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Patrick Gerard Stack
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E03 - WATER SUPPLY SEWERAGE
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