Letter from Porter Lowrey Soren and Stone to John Marshall Thacher, U.S. Patent Office. Commissioner, March 26th, 1875

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Author(s)

Porter Lowrey Soren and Stone
Recipient(s)
Thacher, John Marshall
U.S. Patent Office. Commissioner
Others Mentioned
Prescott, George Bartlett
Edison, Thomas Alva

Subject(s)

Multiple telegraphy (duplex, quadruplex)
Patent application

Dated

1875-03-26 (1875)

Associated Images

5

Identifier

QCA04002 (legacy)

Rights

Thomas Edison National Historical Park

Publisher

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

Citation

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