G01R 21/1333 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

G01R 21/1333

Full Title

Arrangements for measuring electric power or power factor (G01R7/12 takes precedence) > by using digital technique

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.