(under subclass 170) Product including structure (other than the wound material itself) for keeping the strand in a desired path during unwinding thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125, for a bobbin or spool having a strand guide.
128, for apparatus with a wound strand package support and revoluble strand guide.
163, for a housed strand package with strand guide by means of which the strand is delivered through the mass.