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.
Jozef Murgaš
Jozef Murgaš (English Joseph Murgas) (17 February 1864 – 11 May 1929) was a Slovak inventor, architect, botanist, painter and Roman Catholic priest. He contributed to wireless telegraphy and helped in the development of mobile communications and the wireless transmission of information and the human voice.