H01F 27/2804 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

H01F 27/2804

Full Title

Details of transformers or inductances, in general > Coils; Windings; Conductive connections

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

This code exists only in CPC.

Diff view requires codes present in both systems.