DIFF Subgroup
C09B 23/162 Full Title
Methine or polymethine dyes, e.g. cyanine dyes > the polymethine chain containing hetero atoms
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
C09B 23/162 Methine or polymethine dyes, e.g. cyanine dyes > the polymethine chain containing hetero atoms
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.