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[NM020AAP], Technical Note, Thomas Alva Edison, November 24th, 1885

Title: [NM020AAP], Technical Note, Thomas Alva Edison, November 24th, 1885
Editor's Notes: unclear drawing appears to be a circuit, possibly phonoplex
Author: Edison, Thomas Alva
Mentioned: Rowland, Edward C
Date: 1885-11-24
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex); Phonoplex and railroad telegraphy
Folder ID: NM020-F
Microfilm ID: 44:703
Document ID: NM020AAP
URL: https://edisondigital.rutgers.edu/document/NM020AAP
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Has Version: Archive.org Viewer, Microfilm Series Reel 44