Technical Note, Thomas Alva Edison, March 23rd, 1877

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Author(s)

Edison, Thomas Alva
Recipient(s)
Others Mentioned
Bell, Alexander Graham
Phelps, George May, Jr
Prescott, George Bartlett

Subject(s)

Multiple telegraphy (duplex, quadruplex)
Telegraphy, acoustic

Dated

1877-03-23 (1877)

Associated Images

5

Identifier

X012L2A (legacy)

Rights

AT&T Archives and History Center

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
 

Citation

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