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Multi-stage filter assembly
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Patent number 11,639,295
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Issue date May 2, 2023
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Tender Corporation
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John Ruprecht
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Multi-stage filter assembly
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Patent number 10,913,661
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Issue date Feb 9, 2021
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Tender Corporation
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John Ruprecht
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE