• publisher: [Washington, DC] : The Office
  • creator: United States. Patent and Trademark Office
  • contributor: United States. Patent and Trademark Office.
  • Keyword: United States. Patent and Trademark Office. Patents United States. Trademarks United States.
  • years: [1989].
  • pages: 13 p. :
  • notes: Cover title.
  • download: pdf file