Technical Note, Thomas Alva Edison, July 25th, 1887

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Author(s)

Edison, Thomas Alva
Recipient(s)
Others Mentioned
Seely, Henry W

Subject(s)

Patent application
Phonoplex and railroad telegraphy

Dated

1887-07-25 (1887)

Associated Images

3

Identifier

PT032AAHx (legacy)

Rights

Thomas Edison National Historical Park

Publisher

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

Citation

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