IPC 2013 : D21D 5/10 : of the tank.

IPC2013 > D > D21 > D21D > D21D 5/00 > D21D 5/10[4] > of the tank.
D SECTION D — TEXTILES; PAPER.
D21 PAPER-MAKING; PRODUCTION OF CELLULOSE.
D21D TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE.
D21D 5/00 Purification of the pulp suspension by mechanical means; Apparatus therefor (centrifuges, cyclones B04).
D21D 5/10 · · · · of the tank.