Joseph Barker Stearns

Joseph Barker Stearns
Born(1831-02-28)February 28, 1831
DiedJuly 4, 1895(1895-07-04) (aged 64)
Known forInventor of the duplex system of telegraphy

Joseph Barker Stearns (1831-1895) was the inventor of the duplex system of telegraphy.