E01C 11/221 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

E01C 11/221

Full Title

Details of pavings > Gutters; Kerbs (kerbs specially adapted for alerting road users E01F9/535)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.