Details relating to column internals, e.g. structured packing, gas or liquid distribution

Full Title

Processes or apparatus using separation by rectification > Details relating to column internals, e.g. structured packing, gas or liquid distribution

Of 3 combined children, 0 exist in both systems.

3 codes are CPC-only extensions.

Note: 3 CPC extensions are marked as secondary classification only.

This code exists only in CPC.

Diff view requires codes present in both systems.