Creator
- Musial, Joseph W., 1905-1
- N.K. Fairbank Company1
- Napier, James, 1810-18841
- National Aniline and Chemical Company6
- National Carbon Company, Inc.1
- National Committee on Atomic Information1
- National Paint, Varnish and Lacquer Association, Inc.2
- National Research Council (U.S.)2
- National Research Council (U.S.). Division of Engineering and Industrial Research1
- Neuburger, Albert, 1867-19431
- Neville, Roy G.1
- New England Lithographic Co.1
- New Jersey Zinc Company2
- Newlands, James Andrew, 1877-1
- Nonotuck Silk Company1
- Nutshell series1
- Nutter, William H.1
- O'Connell, W. J., Jr.1
- O'Connor, D.1
- O'Reilly, Declan1