| 1771 | Slope Repair | Company Product |
| 1772 | Slope Stability | Company Product |
| 1773 | Slopes | Company Product |
| 1774 | Sloping Panel Socket | Company Product |
| 1775 | Slot Cage | Company Product |
| 1776 | Slot Nut | Company Product |
| 1777 | Slot Type Lifting Cage | Company Product |
| 1778 | Slotted Angle Shelvings | Company Product |
| 1779 | Slotted Trays | Company Product |
| 1780 | Slotting Cage | Company Product |
| 1781 | Slotting Machine Tools | Company Product |
| 1782 | Slotting Machines | Company Product |
| 1783 | Slow Start Valves | Company Product |
| 1784 | Sludge | Company Product |
| 1785 | Sludge & Slush Pumps | Company Product |
| 1786 | Sludge Blanket Measurements | Company Product |
| 1787 | Sludge Cinditional | Company Product |
| 1788 | Sludge Cleaning Chemicals | Company Product |
| 1789 | Sludge Conditional Chemical | Company Product |
| 1790 | Sludge Conditional Chemicals | Company Product |
| 1791 | Sludge Dispersant | Company Product |
| 1792 | Sludge Pump | Company Product |
| 1793 | Sludge Removal | Company Product |
| 1794 | Sludge Removal Chemical | Company Product |
| 1795 | Sludge Remove | Company Product |
| 1796 | Sludge Remove Chemical | Company Product |
| 1797 | Sludge Remove Chemicals | Company Product |
| 1798 | Slugs | Company Product |
| 1799 | Slugs Bags | Company Product |
| 1800 | Sluice Valves | Company Product |