TREA

Plural parallel stages

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Industry

  • CPC
  • D21H5/0055
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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 D21H5/00Special paper or cardboard not otherwise provided for

Current Industry

D21H5/0055Plural parallel stages
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    3899615
    • Patent number 3,899,615
    • Issue date Aug 12, 1975
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3194706
    • Patent number 3,194,706
    • Issue date Jul 13, 1965
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents