D
SECTION D — TEXTILES; PAPER
  
PAPER
 D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
 D21B
FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
P:0 D21B 1/00
Fibrous raw materials or their mechanical treatment (breaking-up or cutting wood or the like by dry methods B27L; obtaining fibres mechanically for spinning from rags, peat, or the like D01B; beaters D21D 1/00)