CPC Subgroup
C02F 3/322 Full Title
Biological treatment of water, waste water, or sewage > characterised by the animals or plants used, e.g. algae
1 direct subcode
Child Classifications
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C02F 3/322 Biological treatment of water, waste water, or sewage > characterised by the animals or plants used, e.g. algae
1 direct subcode
Navigate with arrow keys, Enter to open