Pencil lead for colour pencils, cosmetic pencils and colour chalks and process of manufacturing same Suggests Indian species suitable for the purpose. Cedrus deodara and Cupressus torulosa are suitable for high-grade pencils, and 20 other species, out of c... 被引量: 3发表: 0年 This invention...
decorations for pencils, extensions and attachments for pencils, erasers, adhesive tape dispensers, desktop organizers, bulletin boards, dry-erase writing boards, arts and crafts paint kits, temporary tattoos, card files, facial tissue, chalks, magazines and newsletters featuring theme parks and entertai...
Pencil lead for colour pencils, cosmetic pencils and colour chalks and process of manufacturing same Gives information on the importance of pencil and paper in art. Background information on pencils; Detailed information on manufacture of paper. 被引量: 3发表: 0年 Like coloured pencils in a penc...