DITRON

Adhesive-applying machines for home and office use; Back-up boards, back-up sheets, back-up panels, entry boards, entry sheets, and entry panels made out of paper for use in the operation of drilling holes in printed circuit boards; Bookbinding machines for office use; Drafting instruments; Drafting triangles; Drawing rulers; Duplicating machines; Hand-operated punches being office requisites; Label printing machines; Office check writing and engraving machines; Office labeling machines; Office lettering machines; Protractors as drawing instruments; Printed flash cards