Ice surface line applicator
Illuminated engraving machine
Illuminated progressive lens marker
Image forming member drive device of an automatic drawing appara
Image scanner guide
Infinite radius circle drawing instrument
Infinitely variable drawing instrument
Inscribing system
Inscription instrument
Inside/outside scribe
Instrument for drawing dashed lines or the like
Instrument for drawing ellipse or the like
Instrument for drawing geometric figures
Instrument for making perspective drawing
Instrument for tracing curved figures particularly ellipses
Instruments for drawing circles
Irregular surface ellipsograph