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[QCB06089] Technical Note, May 1877

Title: [QCB06089] Technical Note, May 1877
Author: Edison, Thomas Alva
Date: 1877-05-00
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex); Automatic telegraphy
Folder ID: QCB06-F
Microfilm ID: 9:382
Document ID: QCB06089
URL: https://edisondigital.rutgers.edu/document/QCB06089
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 9