C09B 31/025 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

C09B 31/025

Full Title

Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling > Disazo dyes

This code exists only in CPC.

Diff view requires codes present in both systems.