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[NE1691026] Technical Note, November 21st, 1875

Title: [NE1691026] Technical Note, November 21st, 1875
Author: Batchelor, Charles; Adams, James
Date: 1875-11-21
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NE1691-F
Microfilm ID: 3:206
Document ID: NE1691026
URL: https://edisondigital.rutgers.edu/document/NE1691026
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 3