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[QCC02270], Technical Note, Thomas Alva Edison, June 15th, 1874

Title: [QCC02270], Technical Note, Thomas Alva Edison, June 15th, 1874
Editor's Notes: Supplied year, month, and day
Author: Edison, Thomas Alva
Mentioned: Phelps, George May
Date: 1874-06-15
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: QCC02-F
Microfilm ID: 10:338
Document ID: QCC02270
URL: https://edisondigital.rutgers.edu/document/QCC02270
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 10