Patent classifications
D
TEXTILES; PAPER
Load children
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
Load children
D21B
FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
Load children
1/00
Fibrous raw materials or their mechanical treatment
Load children Filter patents View analytics View as hierarchy
D21B1/04
by dividing raw materials into small particles, e.g. fibres
Load children Filter patents View analytics View as hierarchy
D21B1/12
by wet methods, by the use of steam
Load children Filter patents View analytics View as hierarchy
D21B1/30
Defibrating by other means
Load children Filter patents View analytics View as hierarchy
D21B1/34
Kneading or mixing; Pulpers
Load children Filter patents View analytics View as hierarchy