H04M 1/003 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

H04M 1/003

Full Title

Substation equipment, e.g. for use by subscribers (subscriber services or facilities provided at exchanges H04M3/00; prepayment telephone coin boxes H04M17/00; current supply arrangements H04M19/08)

This code exists only in CPC.

Diff view requires codes present in both systems.

View in CPC →