IPC 2013 : D03C 1/32 : wherein all the hooks are engaged with the knives, and unselected hooks then disengaged.

IPC2013 > D > D03 > D03C > D03C 1/00 > D03C 1/32[3] > wherein all the hooks are engaged with the knives, and unselected hooks then disengaged.
Notes[t] D01 - D07: TEXTILES OR FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
D SECTION D — TEXTILES; PAPER.
D03 WEAVING.
D03C SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS.
D03C 1/00 Dobbies.
D03C 1/32 · · · wherein all the hooks are engaged with the knives, and unselected hooks then disengaged.