| Human Necessities | |
| (e.g. agriculture, foodstuffs, personal or domestic articles, amusement, sports, games etc.) | |
| Health | |
| Performing operations, Transporting | |
| (e.g. separating, mixing, shaping, printing, transporting) | |
| Chemistry, Metallurgy | |
| Textiles, Paper | |
| Fixed constructions | |
| (e.g. building, mining etc.) | |
| Mechanical Engineering, Lighting, Heating, Weapons | |
| Physics | |
| (e.g. instruments, photography, cinematography, controlling, educating, musical instruments, nucleotics etc.) | |
| Computing | |
| Electricity | |