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} |
207.19 | .~.~.~.~.~ Differential bridge circuit |