Patent Application, Thomas Alva Edison, April 22nd, 1873

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Author(s)

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

Subject(s)

Multiple telegraphy (duplex, quadruplex)

Dated

1873-04-22 (1873)

Associated Images

11

Identifier

W100BA1D (legacy)

Rights

Publisher

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

Citation

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