HELIX OXFORD

Measuring and teaching apparatus and instruments, namely, graduated rulers, protractors, and graduated measuring scale rulers; mathematical instruments, namely, graduated rulers, protractors, and graduated measuring scale rulers; sets of mathematical instruments containing graduated rulers, protractors, graduated measuring scale rulers, triangles, measuring rules, pencil sharpeners, pencils, erasers, dividers and stencils; protractors; rulers, namely, graduated rulers and measuring rules

Sets of drawing instruments; drawing instruments; drawing compasses; drafting compasses; T-squares; protractors; rulers, namely, drafting rulers, drawing rulers, erasers; pencils; pencil sharpeners; stencils; cases for sets of drawing instruments; pens; stationery; vellum paper; and set squares, namely, drawing triangles; drafting and drawing compasses; and cases for protractors, erasers, pencils