Bobbins or spools provided with devices for holding or securing the end of the thread or for guiding it during unwinding and not otherwise classifiable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
579+, for devices adapted to hold the inner ends of webs to winding cores, drums, or reels.
SEE OR SEARCH CLASS
206, Special Receptacle or Package,
389+,.
225, Severing by Tearing or Breaking,
63+, for spools having a thread cutter attachment which also acts to clamp the thread.
