| 1831 | Coating System | Company Product |
| 1832 | Coating Thickness Gauge | Company Product |
| 1833 | Coating Thickness Measuring Instruments | Company Product |
| 1834 | Coating Thickness Meters | Company Product |
| 1835 | Coating Thickness Testers | Company Product |
| 1836 | Coating Thickness Testing Equipment | Company Product |
| 1837 | Coating Tools | Company Product |
| 1838 | Coatings | Company Product |
| 1839 | Coatings Resins | Company Product |
| 1840 | Coaxial Assemblies | Company Product |
| 1841 | Coaxial Cables | Company Product |
| 1842 | Cobalt Steeel Drill Bit | Company Product |
| 1843 | Cobalt Steel Drill Bit | Company Product |
| 1844 | Cobblers | Company Product |
| 1845 | Cockroaches Control | Company Product |
| 1846 | Cockroaches Pest Control | Company Product |
| 1847 | Cocktail Lounges | Company Product |
| 1848 | Cocktail Napkins | Company Product |
| 1849 | Cocktail Table Spandex | Company Product |
| 1850 | Coco Brush | Company Product |
| 1851 | Coco Floor Broom | Company Product |
| 1852 | Cocoa | Company Product |
| 1853 | Cocoa Butter & Powder | Company Product |
| 1854 | Cocoa Drinks | Company Product |
| 1855 | Cocoa Processing Machines | Company Product |
| 1856 | Coconut Agar-Agar | Company Product |
| 1857 | Coconut Cream | Company Product |
| 1858 | Coconut Dessert | Company Product |
| 1859 | Coconut Dressing | Company Product |
| 1860 | Coconut Drink | Company Product |