(under subclass 11) Processes and products which include industrial wastes. Industrial wastes, within the meaning of this subclass, include ashes, cinders, paper, flue dust, waste liquors from paper manufacture, tanning liquors, corn steep liquors, gas liquor, etc..; in brief, any substance of organic origin ordinarily considered a waste material resulting from an industrial process and not provided for above. Other organic fertilizer values, such as classified hereinbelow, may also be present.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42, 43, for gas liquors used in alkaline treatment or neutralization of phosphates.
