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[NS7401J], Technical Note, Thomas Alva Edison, November 25th, 1874

Title: [NS7401J], Technical Note, Thomas Alva Edison, November 25th, 1874
Author: Edison, Thomas Alva
Date: 1874-11-25
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7401-F
Microfilm ID: 7:41
Document ID: NS7401J
URL: https://edisondigital.rutgers.edu/document/NS7401J
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 7