Patent classifications
D
TEXTILES; PAPER
Load children
D21
PAPER-MAKING; PRODUCTION OF CELLULOSE
Load children
D21D
TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
Load children
5/00
Purification of the pulp suspension by mechanical means; Apparatus therefor
Load children Filter patents View analytics View as hierarchy
D21D5/18
with the aid of centrifugal force
Load children Filter patents View analytics View as hierarchy