Technical Note, Thomas Alva Edison, September 20th, 1877

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Author(s)

Edison, Thomas Alva
Recipient(s)
Others Mentioned
Orton, William
Phelps, George May, Jr
U.S. Patent Office

Subject(s)

Telephone

Dated

1877-09-20 (1877)

Associated Images

2

Identifier

X012L2C (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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