| 2101 | Solid Waste Material Systems | Company Product |
| 2102 | Solid Waste Plants | Company Product |
| 2103 | Solid Waste Systems | Company Product |
| 2104 | Solid Wood Decking | Company Product |
| 2105 | Solid Wood Furniture | Company Product |
| 2106 | Solid Wood Parquet | Company Product |
| 2107 | Solid-State Switching Devices | Company Product |
| 2108 | Solids Analyzer | Company Product |
| 2109 | Solids Detection | Company Product |
| 2110 | Solids Flow Detection | Company Product |
| 2111 | Solids Flowmeters | Company Product |
| 2112 | Solids Level Point Detection | Company Product |
| 2113 | Solinoid Valves | Company Product |
| 2114 | Soltaire 120/ 250 | Company Product |
| 2115 | Solutions | Company Product |
| 2116 | Solvent & Removers | Company Product |
| 2117 | Solvent Based Sealers | Company Product |
| 2118 | Solvent Cleaning Machines | Company Product |
| 2119 | Solvent Degreaser | Company Product |
| 2120 | Solvent Products | Company Product |
| 2121 | Solvent Recovery Equipment | Company Product |
| 2122 | Solvent Sprayer | Company Product |
| 2123 | Solvent-Based Paint | Company Product |
| 2124 | Solvent-Based Primers | Company Product |
| 2125 | Solvent-Based Wood Care | Company Product |
| 2126 | Solventless or Waterless Hand Cleaners | Company Product |
| 2127 | Solvents | Company Product |
| 2128 | Sonic Coring | Company Product |
| 2129 | Sonic Coring Method | Company Product |
| 2130 | Sonic Coring Test | Company Product |