IPC 2013 : D02G 3/10 : Yarns or threads formed from collagenous materials, e.g. catgut.

IPC2013 > D > D02 > D02G > D02G 3/00 > D02G 3/10[2] > Yarns or threads formed from collagenous materials, e.g. catgut.
Notes[t] D01 - D07: TEXTILES OR FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
D SECTION D — TEXTILES; PAPER.
D02 YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING.
D02G CRIMPING OR CURLING FIBRES, FILAMENTS, YARNS, OR THREADS; YARNS OR THREADS.
D02G 3/00 Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for (for producing crimped or curled yarns D02G 1/00).
D02G 3/10 · · Yarns or threads formed from collagenous materials, e.g. catgut.