33 / | HD | GEOMETRICAL INSTRUMENTS |
501 | DF | GAUGE {61} |
666 | DF | .~ With point marker {7} |
670 | DF | .~.~ Having marker centering means {4} |
673 | .~.~.~ Having adjustable workpiece-contacting centering means {2} | |
674 | DF | .~.~.~.~> Pivoted caliper workpiece-contacting means |
675 | DF | .~.~.~.~> Rack and pinion operating workpiece-contacting means |