Patent classifications
C
CHEMISTRY; METALLURGY
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C02
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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C02F
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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11/00
Treatment of sludge; Devices therefor
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C02F11/18
by thermal conditioning
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C02F11/185
by pasteurisation
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