Creator
- The Chemical Engineer Publishing Co.1
- The Claflin-Sholes Company1
- The Company1
- The Cornwall Press1
- The Experimenter Publishing Co.1
- The Farbwerke1
- The Maple Press1
- The Selwood Printing Works1
- Thurber, Francis B. (Francis Beatty), 1842-19071
- Tipografia tovaritchestva Obshchestvenna︠i︡a polʹza1
- Tournois, E.1
- Tower, Samuel Francis1
- Trease, George Edward, 1902-1
- Trillich, Heinrich1
- Trow, Joseph F.1
- Tungsten Institute1
- Turnbull, Laurence, 1821-19001
- Tyler, Marguerite Griffith, b. 18811
- Ullstein GmbH1
- Unesma1