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[NS7502D], Technical Note, Charles Batchelor, Thomas Alva Edison, November 22nd, 1875

Title: [NS7502D], Technical Note, Charles Batchelor, Thomas Alva Edison, November 22nd, 1875
Author: Batchelor, Charles; Edison, Thomas Alva
Date: 1875-11-22
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7502-F
Microfilm ID: 7:338
Document ID: NS7502D
URL: https://edisondigital.rutgers.edu/document/NS7502D
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
License: CC0 1.0 Universal