Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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B01D
SEPARATION
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B01D19/02
Foam dispersion or prevention
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B01D19/04
by addition of chemical substances
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B01D19/0404
characterised by the nature of the chemical substance
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B01D19/0422
compounds containing S-atoms
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