E04H 4/1209 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

E04H 4/1209

Full Title

Swimming or splash baths or pools > Devices or arrangements for circulating water

Of 6 combined children, 0 exist in both systems.

6 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.