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[NS7704ZAQ], Technical Note, Thomas Alva Edison, James Adams, Charles Batchelor, May 10th, 1877

Title: [NS7704ZAQ], Technical Note, Thomas Alva Edison, James Adams, Charles Batchelor, May 10th, 1877
Editor's Notes: sexty 14pp: fr 547 is formal version of fr 539 3-strength; bug traps; EMG; relay details; "Boog Trahop"
Author: Batchelor, Charles; Adams, James; Edison, Thomas Alva
Date: 1877-05-10
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: NS7704-F
Microfilm ID: 7:547
Document ID: NS7704ZAQ
URL: https://edisondigital.rutgers.edu/document/NS7704ZAQ
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 7