H04Q 11/023 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

H04Q 11/023

Full Title

Selecting arrangements for multiplex systems (multiplex systems H04J) > for frequency-division multiplexing

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.