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Patent Classification Explorer PCE

Search Classifications

Search for IPC and CPC classification codes or keywords

C
C21
C21B
C21B 2200/00

CPC Main Group Additional Only

C21B 2200/00

Recycling of non-gaseous waste material

CPC C21B 2200/00

No direct equivalent in IPC

4 CPC-only subgroups

C21B 2100/00 C21B 2300/00

Data: WIPO (IPC), EPO/USPTO (CPC) — CC BY 4.0

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