IPC 2013 : D21G 3/02 : for calenders.

IPC2013 > D > D21 > D21G > D21G 3/00 > D21G 3/02[1] > for calenders.
D SECTION D — TEXTILES; PAPER.
D21 PAPER-MAKING; PRODUCTION OF CELLULOSE.
D21G CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES (winders or rewinders for finished products, means for adjustment of wrinkles or lateral extensions B65H).
D21G 3/00 Doctors.
D21G 3/02 · for calenders.