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PCE
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CPC Subgroup
C02F 11/15

by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves (for the purpose of heating C02F11/131)

Full Title

Treatment of sludge; Devices therefor > by de-watering, drying or thickening > by treatment with electric, magnetic or electromagnetic fields; by treatment with ultrasonic waves (for the purpose of heating C02F11/131)