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[D8639Q1], Technical Note, Edison Machine Works, June 8th, 1886

Title: [D8639Q1], Technical Note, Edison Machine Works, June 8th, 1886
Editor's Notes: Quadruplex blueprint as referenced in D8639Q
Author: Edison Machine Works
Date: 1886-06-08
Type: Technical Note
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: D8639-F
Microfilm ID: 79:1156
Document ID: D8639Q1
URL: https://edisondigital.rutgers.edu/document/D8639Q1
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 79