(under subclass 22) Products and compositions which are mixtures of a natural asphalt, petroleum asphalt, tar, pitch, or resin with each other or with some other mineral oil, and methods of mixing such ingredients.
SEE OR SEARCH CLASS
106, Compositions: Coating or Plastic, particularly
273.1+, for compositions containing mixtures of asphalt, tar, pitch or petroleum resin and a nonmineral oil material.