The quadruplex [electronic resource] / by Wm. Maver, jr., and Minor M. Davis. With chapters on the dynamo-electric machine in relation to the quadruplex. The practical working of the quadruplex. Telegraph repeaters, and the Wheatstone automatic telegraph / Wm. Maver, jr.
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| Format: | Electronic eBook |
| Language: | English |
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New York :
W.J. Johnston,
1885.
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| Series: | Nineteenth Century Collections Online (NCCO): Science, Technology, and Medicine: 1780-1925.
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