TREA

at least one of the sheets being non-planar

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Industry

  • CPC
  • D21H27/40
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Parent Industries

DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR D21H27/00Special paper not otherwise provided for

Current Industry

D21H27/40at least one of the sheets being non-planar
Industries