33 / | HD | GEOMETRICAL INSTRUMENTS |
700 | DF | DISTANCE MEASURING {13} |
783 | DF | .~ Opposed contacts {10} |
813 | DF | .~.~ Micrometer {10} |
821 | DF | .~.~.~ With preliminary setting arrangement {4} |
823 | .~.~.~.~ Micrometer slidably mounted on a beam {1} | |
824 | DF | .~.~.~.~.~> Other contact slidable on beam |