The structure and arrangement of counter- stiffeners.
SEE OR SEARCH CLASS
428, Stock Material or Miscellaneous Articles, appropriate subclasses, for a stock material product in the form of a single or plural layer web or sheet.
442, Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, etc.),
59+, for coated and impregnated fabric or textile in general.
