| 841 | Internal Sensor | Company Product |
| 842 | Internal Telephone Wiring For Telecommunications | Company Product |
| 843 | International | Company Product |
| 844 | International Procurement Office | Company Product |
| 845 | International Restaurants | Company Product |
| 846 | International School | Company Product |
| 847 | Internet Hosting | Company Product |
| 848 | Internet Marketing Service | Company Product |
| 849 | Internet Service Provider | Company Product |
| 850 | Interpretation Service | Company Product |
| 851 | Interval Timers | Company Product |
| 852 | Interview | Company Product |
| 853 | Intimate Wash | Company Product |
| 854 | Intravenous Solution Manufacturers | Company Product |
| 855 | Intrinsic Safety | Company Product |
| 856 | Intrinsic Safety Interface Controls | Company Product |
| 857 | Intrinsically Safe System | Company Product |
| 858 | Intrinsically Safe Wireless Pressure Sensors | Company Product |
| 859 | Intruder Alarms | Company Product |
| 860 | Intrusion Detection Systems | Company Product |
| 861 | Intrusion Detectors | Company Product |
| 862 | Inventory Management | Company Product |
| 863 | Inventory Service | Company Product |
| 864 | Inventory Software | Company Product |
| 865 | Inverta Push | Company Product |
| 866 | Inverted Microscopes | Company Product |
| 867 | Inverter | Company Product |
| 868 | Inverter Air Compressors | Company Product |
| 869 | Inverter Batteries | Company Product |
| 870 | Inverter Control Cards | Company Product |