Patent Specification, Thomas Alva Edison, April 9th, 1873

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Author(s)

Edison, Thomas Alva
Recipient(s)
Others Mentioned
Goepel, Paul
Munn & Co

Subject(s)

Multiple telegraphy (duplex, quadruplex)

Dated

1873-04-09 (1873)

Associated Images

6

Identifier

PT005B1 (legacy)

Rights

Thomas Edison National Historical Park

Publisher

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

Citation

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