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  • Journals, Magazines, Newspapers

    Patents CLASS

    Patents CLASS (DVD-ROM)
    Date
    2001-
    Available As
    Physical
  • Journals, Magazines, Newspapers; Microforms

    U.S. patent classification definitions

    Author
    United States. Patent and Trademark Office
    Available As
    Online
    Physical
  • Journals, Magazines, Newspapers; Microforms

    Classification orders

    Author
    United States. Patent and Trademark Office
    Available As
    Online
    Physical

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