FI (list display)

  • D21B1/00
  • Fibrous raw materials or their mechanical treatment (pretreatment of the finely-divided materials before digesting D21C 1/00; methods of beating or refining pulpD21D 1/00; purification of the pulp suspension by mechanical means D21D 5/00) HB CC 4L055
  • D21B1/02
  • .Pretreatment of the raw materials by physical or chemical means (removal of bark B27L) HB CC 4L055
  • D21B1/04
  • .by dividing raw materials into small particles, e.g. fibres (breaking-up or cutting wood or the like by dry methods B27L; mechanical separation of fibres from plant material D01B 1/00; hackling or heckling machines D01B 5/00) HB CC 4L055
  • D21B1/06
  • ..by dry methods HB CC 4L055
  • D21B1/08
  • ...the raw material being waste paper; the raw material being rags HB CC 4L055
  • D21B1/10
  • ....by cutting actions HB CC 4L055
  • D21B1/12
  • .. by wet methods; by the use of steam HB CC 4L055
  • D21B1/14
  • ...Disintegrating in mills HB CC 4L055
  • D21B1/16
  • ....in the presence of chemical agents HB CC 4L055
  • D21B1/18
  • ....in magazine-type machines HB CC 4L055
  • D21B1/20
  • .....with chain feed HB CC 4L055
  • D21B1/22
  • .....with screw feed HB CC 4L055
  • D21B1/24
  • .....of the pocket type HB CC 4L055
  • D21B1/26
  • ....Driving or feeding arrangements HB CC 4L055
  • D21B1/28
  • ....Dressers for mill stones, combined with the mill HB CC 4L055
  • D21B1/30
  • ...Defibrating by other means HB CC 4L055
  • D21B1/32
  • ....of waste paper HB CC 4L055
  • D21B1/34
  • ....Kneading or mixing; Pulpers HB CC 4L055
  • D21B1/36
  • ....Explosive disintegration by sudden pressure reduction HB CC 4L055
  • D21B1/38
  • .Conserving the finely-divided cellulosic material HB CC 4L055
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