| 991 | Dissolved Chlorine Level Sensors | Company Product |
| 992 | Dissolved Chlorine Sensors | Company Product |
| 993 | Dissolved Chrlorine Sensors | Company Product |
| 994 | Dissolved Oxygen | Company Product |
| 995 | Dissolved Oxygen Analyzers | Company Product |
| 996 | Dissolved Oxygen Chemicals | Company Product |
| 997 | Dissolved Oxygen (do) Meter | Company Product |
| 998 | Dissolved Oxygen Meters | Company Product |
| 999 | Dissolved Oxygen Probe | Company Product |
| 1000 | Dissolved Oxygen Sensors | Company Product |
| 1001 | Dissolved Oxygen Test Probes | Company Product |
| 1002 | Distance Measurers | Company Product |
| 1003 | Distance Meter | Company Product |
| 1004 | Distance Reading Thermometers | Company Product |
| 1005 | Distance Reading Type Thermometers | Company Product |
| 1006 | Distilled Tall Oil | Company Product |
| 1007 | Distillers | Company Product |
| 1008 | Distillery Equipment | Company Product |
| 1009 | Distortion Analysers | Company Product |
| 1010 | Distortion Meters | Company Product |
| 1011 | Distributed Antenna System Australia | Company Product |
| 1012 | Distributed Antenna Systems | Company Product |
| 1013 | Distribution | Company Product |
| 1014 | Distribution Boards | Company Product |
| 1015 | Distribution Boxes | Company Product |
| 1016 | Distribution Panel Circuit Breakers | Company Product |
| 1017 | Distribution Shaft | Company Product |
| 1018 | Distribution Systems | Company Product |
| 1019 | Distribution Tranformers | Company Product |
| 1020 | Distribution Transformers | Company Product |