… drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, measuring rods and tapes, micrometers, callipers), not …
Explanatory notes
… drafting machines, pantographs, protractors, drawing sets, slide rules, disc calculators); instruments for measuring length, for use in the hand (for example, … include : (A) Drawing instruments . (1) Pantographs and eidographs for smaller, larger or same scale reproductions …