Joseph Barker Stearns
Joseph Barker Stearns (1831-1895) was the inventor of the duplex system of telegraphy.
Joseph Barker Stearns | |
|---|---|
| Born | February 28, 1831 |
| Died | July 4, 1895 (aged 64) |
| Known for | Inventor of the duplex system of telegraphy |
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