(under subclass 101) Subject matter consisting of a utensil of wire mesh or closely perforated metal which removes particles smaller than the grain being separated such as weed seeds, sand and other foreign matter.
SEE OR SEARCH CLASS
99, Foods and Beverages: Apparatus,
528, for screen to separate food products,
209, Classifying, Separating, and Assorting Solids,
401, for sifting passages which are formed by spaced intermeshing or crossing connected threads, wires or bars.
241, Solid Material Comminution and Disintegration,
83+, for comminuting surface provided with openings to permit discharge of material which includes screen or screen elements.