| 204 / | HD | CHEMISTRY: ELECTRICAL AND WAVE ENERGY |
| * | DD | PROCESSES AND PRODUCTS {7} |
| 164 | DF | .~ Electrostatic field or electrical discharge {6} |
| 165 | ![]() | .~.~ Organic {3} |
| 166 | DF | .~.~.~> Vitamins |
| 167 | DF | .~.~.~> Fats, fatty oils, ester type waxes, or higher fatty acids |
| 168 | DF | .~.~.~> Hydrocarbons {3} |