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Patent Classification Explorer PCE

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Search for IPC and CPC classification codes or keywords

H
H03
H03H
H03H 2260/00

CPC Main Group Additional Only

H03H 2260/00

Theory relating to impedance networks

CPC H03H 2260/00

No direct equivalent in IPC

7 CPC-only subgroups

H03H 2250/00 H03H 3/00

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

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