Samuel Morse
In addition to the telegraph, Morse invented a marble-cutting machine that could carve three-dimensional sculptures in marble or stone. He could not patent it, however, because of an existing 1820 Thomas Blanchard design.
James O. Clephane
James Ogilvie Clephane (February 21, 1842 – November 30, 1910) was an American court reporter and venture capitalist who was involved in improving, promoting and supporting several inventions of his age, including the typewriter, the graphophone, and the linotype machine. He has been called the "father of the linotype machine", and the development of mechanical typesetting was largely due to his initiative.