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[NS7704ZAP], Technical Note, Charles Batchelor, James Adams, Thomas Alva Edison, May 9th, 1877

Title: [NS7704ZAP], Technical Note, Charles Batchelor, James Adams, Thomas Alva Edison, May 9th, 1877
Editor's Notes: sexty 12 pp: tube?; 3-strength; relay; "works well";
Author: Batchelor, Charles; Adams, James; Edison, Thomas Alva
Date: 1877-05-09
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7704-F
Microfilm ID: 7:538
Document ID: NS7704ZAP
URL: https://edisondigital.rutgers.edu/document/NS7704ZAP
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