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Across
  1. 5. a cover for sheets of paper, usually with metal rings on the inside
  2. 6. a folded paper container for a letter
  3. 7. machine used to create a second, third, fourth identical version of an original document
  4. 10. an instrument used for drawin, with a small balck graphite rod in the middle
  5. 11. a small machine used to fasten a few sheets of paper together by pushing a light U-shaped metal wire through them.
Down
  1. 1. general term for all writing materials
  2. 2. British English equivalent for sticky tape
  3. 3. a cupboard for holding files and binders
  4. 4. a British English equivalent for a ballpoint
  5. 8. machine used to make mathematics easier
  6. 9. device used to write by hand using ink