(under subclass 252) Subject matter wherein at least one of the fibers in the strand is of a cross section other than solid round, such as elliptical, multilobal, hollow, cruciform, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
215, 219 and 248, for other strand structures having components with particular cross sections.
SEE OR SEARCH CLASS
264, Plastic and Nonmetallic Article Shaping or Treating: Processes,
177.1+, for extrusion of filaments having a particular cross section.
428, Stock Material or Miscellaneous Articles,
397+, for fibers or filaments of a particular cross section.
