(under subclass 1) Subject matter wherein the strand being twisted is stretched or elongated concomitantly with or subsequent to the twisting operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
287+, for false twist crimping combined with a stretching operation.
SEE OR SEARCH CLASS
28, Textiles: Manufacturing,
240+, for apparatus for stretching running strand lengths.
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
288.4, for processes for stretching a strand length.
