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Courtland J. Martel Jr.
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Enfield, NH, US
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Patent Grant
Sludge dewatering by freezing
Patent number
5,250,192
Issue date
Oct 5, 1993
The United States of America as represented by the Secretary of the Amry
Courtland J. Martel
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE