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.
Stock market data systems
In 1863 Edward A. Calahan of the American Telegraph Company invented a stock telegraph printing instrument which allowed data on stocks, bonds, and commodities to be sent directly from exchanges to broker offices around the country. It printed the data on wide paper tape wound on large reels. The sound it made while printing earned it the name "stock ticker". Other inventors improved on this device, and ultimately Thomas Edison patented a "universal stock ticker", selling over 5,000 in the late 19th century.