16 duplicators, namely, mimeograph machines; office requisites, namely, desk pads, letter openers and pen and pencil sets; stationary; printed matter in the form of books, booklets and brochures, all featuring information dealing with issues of business management and desktop publishing; bookbinding materials, namely, paste, binding thread and plastic binding clips; ring binder systems consisting of binders with tabbed dividers; typewriters; re-usable plastic sheets for use with overhead projectors; plastic envelopes for mailing and document storage purposes; plastic materials for packaging, namely, plastic or paper bags, envelopes or pouches for merchandise packaging