IPC 2013 : D01H 4/34 : using air-jet streams.

IPC2013 > D > D01 > D01H > D01H 4/00 > D01H 4/34[2] > using air-jet streams.
Notes[t] D01 - D07: TEXTILES OR FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
Notes[g] D01H 1/00 - D01H 7/00: Kinds or types of spinning or twisting machines; Drafting machines or arrangements; Twisting arrangements
D SECTION D — TEXTILES; PAPER.
D01 NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING.
D01H SPINNING OR TWISTING (unwinding, paying-out, forwarding, winding, or coiling filamentary material, not intimately associated with spinning or twisting, B65H; cores, formers, supports, or holders for coiled or wound material, e.g. bobbins, B65H; twisting oakum D01G 35/00; crimping or curling of fibres, filaments, or yarns D02G 1/00; making chenille D03D, D04D 3/00; testing yarns, rovings, slivers, fibres, or fibre webs G01).
D01H 4/00 Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques.
D01H 4/34 · · using air-jet streams.