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[NS7704Z], Technical Note, Thomas Alva Edison, James Adams, April 11th, 1877

Title: [NS7704Z], Technical Note, Thomas Alva Edison, James Adams, April 11th, 1877
Editor's Notes: Sexty 4 pp: EMG, contact point at end of reed; embosser; "GSmith quad"
Author: Adams, James; Edison, Thomas Alva
Date: 1877-04-11
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7704-F
Microfilm ID: 7:475
Document ID: NS7704Z
URL: https://edisondigital.rutgers.edu/document/NS7704Z
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