| 1/00 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like |
| 1/02 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Hand screens |
| 1/04 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Stationary flat screens |
| 1/06 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Cone or disc shaped screens |
| 1/08 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Screens rotating within their own plane |
| 1/10 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Screens in the form of endless moving bands |
| 1/12 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Apparatus having only parallel elements |
| 1/14 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Apparatus having only parallel elements Roller screens |
| 1/15 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Apparatus having only parallel elements Roller screens using corrugated, grooved or ribbed rollers |
| 1/16 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Apparatus having only parallel elements the elements being movable and in other than roller form |
| 1/18 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Drum screens |
| 1/20 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Drum screens Stationary drums with moving interior agitators |
| 1/22 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Drum screens Revolving drums |
| 1/24 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Drum screens Revolving drums with fixed or moving interior agitators |
| 1/26 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Drum screens Revolving drums with additional axial or radial movement of the drum |
| 1/28 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens |
| 1/30 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens jigging or moving to-and-fro in or approximately in the direction of conveyance |
| 1/32 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens jigging or moving to-and-fro within their own plane transverse to the direction of conveyance |
| 1/34 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendicularly to the plane of the screen |
| 1/36 | Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting, or wobbling screens jigging or moving to-and-fro in more than one direction |