Mine sharpener for the production of conical and chisel-like cutting in leads of mechanical pencils or the like.
DE824005C
Roller milling cutter for pencil sharpening machines
DE808426C
Roller milling cutter for pencil sharpening machines
DE824319C
Jig for pencil sharpening machines
DE716549C
Pencil sharpening machine with a cylindrical milling cutter which is arranged at an angle to the pencil axis and revolving around its own axis as well as around the pencil axis
DE721424C
Sharpening machine for pencils, colored pencils, etc. Like. With cutter and cutter shaft mounted on balls
