Patent classifications
D
TEXTILES; PAPER
Load children
D01
NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
Load children
D01H
SPINNING OR TWISTING
Load children
7/00
Spinning or twisting arrangements
Load children Filter patents View analytics View as hierarchy
D01H7/02
for imparting permanent twist
Load children Filter patents View analytics View as hierarchy
D01H7/86
Multiple-twist arrangements, e.g. two-for-one twisting devices; ; Threading of yarn; Devices in hollow spindles for imparting false twist
Load children Filter patents View analytics View as hierarchy