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Earthtek Enviromental Systems, Inc.
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Batesville, IN, US
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Patent Grant
Multi-layer recirculating filter wastewater treatment apparatus
Patent number
6,132,599
Issue date
Oct 17, 2000
Earthtek Enviromental Systems, Inc.
Kevin R. Chaffee
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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