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[W100DJ019A], Technical Note, Thomas Alva Edison, May 6th, 1877

Title: [W100DJ019A], Technical Note, Thomas Alva Edison, May 6th, 1877
Author: Edison, Thomas Alva
Mentioned: Western Union; Phelps, George May, Jr; Pinckney, George T
Date: 1877-05-06
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: W100DJ-F
Document ID: W100DJ019A
URL: https://edisondigital.rutgers.edu/document/W100DJ019A
Rights: National Archives
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University