US PATENT SUBCLASS 57 / 290
.~.~.~ Plural twisting or heating
Current as of:
June, 1999
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TEXTILES: SPINNING, TWISTING, AND TWINING
1 R
DF
APPARATUS AND PROCESSES
{45}
282
DF
.~ Twist setting {3}
284
DF
.~.~ False twist crimp {6}
290
.~.~.~ Plural twisting or heating
DEFINITION
Classification: 57/290
Plural twisting or heating:
(under subclass 284) Subject matter wherein the strand is subjected to more than one false twisting or heating operation.