Technical Note, Thomas Alva Edison, June 15th, 1874

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Author(s)

Edison, Thomas Alva
Recipient(s)
Others Mentioned
Phelps, George May

Subject(s)

Multiple telegraphy (duplex, quadruplex)

Dated

1874-06-15 (1874)

Associated Images

5

Identifier

QCC02270 (legacy)

Rights

Thomas Edison National Historical Park

Publisher

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

Citation

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