TREA

Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

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Industry

  • CPC
  • D21C9/1057
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Parent Industries

DTEXTILES PAPER D21Papermaking D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR D21C9/00After-treatment of cellulose pulp

Current Industry

D21C9/1057Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
Industries