(under subclass 50) Subject matter in which the metal heated is an endless strip.
SEE OR SEARCH CLASS
226, Advancing Material of Indeterminate Length, appropriate subclasses for methods of, and apparatus for, feeding material without utilizing the leading or trailing ends to effect movement of the material.
242, Winding, Tensioning, or Guiding, appropriate subclasses for winding, tensioning, or guiding elongated material in general which may include endless material.
