| 324 / | HD | ELECTRICITY: MEASURING AND TESTING |
| 200 | DF | MAGNETIC {24} |
| 207.11 | DF | .~ Displacement {7} |
| 207.13 | DF | .~.~ Having particular sensor means {4} |
| 207.15 | DF | .~.~.~ Inductive {1} |
| 207.16 | DF | .~.~.~.~ Electrically energized {3} |
| 207.17 | ![]() | .~.~.~.~.~ Separate pick-up |