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PCE
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DIFF Subgroup Additional Only
C01B 2203/04

containing a purification step for the hydrogen or the synthesis gas

Full Title

Integrated processes for the production of hydrogen or synthesis gas > containing a purification step for the hydrogen or the synthesis gas

Of 7 combined children, 0 exist in both systems.

7 codes are CPC-only extensions.

Note: 7 CPC extensions are marked as secondary classification only.