Lead pencils, coloured pencils, pastel crayons; mechanical pencils, pro-and repelling pencils, artists' pencils, ball point pens and refills for same; copying pencils and coloured copying pencils, writing, drawing and painting chalks, chalk pencils, slate pencils, rubber pencils, slates, stencils; pencil sharpeners; rulers, curves, T-squares, pen-holders, scales, slide rules, drawing boards, protractors, drawing instrument sets, set squares; fountain pens, rubber and erasers, rubber bands and other stationery goods, all being articles included in class 16

Air-exhausters, air cleaners, hoods

Drawing instruments; globes-celestial and terrestial; instructional and teaching material (other than apparatus),

Automatic apparatus for lighting; electric lamps; installations for lighting, heating, refrigerating, drying, ventilating, water supply and sanitary purposes,

Paper, cardboard and goods made from these materials, not included in other classes; printed matter; bookbinding material; photographs; stationery; adhesives for stationery or household purposes; artists' materials; paint brushes; typewriters and office requisites (except furniture); instructional and teaching material (except apparatus); plastic materials for packaging (not included in other classes); printers' type; printing blocks

Crisps; potato chips; potato crisps; potato puffs; potato snacks; vegetable chips; fruit chips

Tortilla chips; rice crisps; whole-wheat crisps; crisps made from cereals