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[N310143], Technical Note, Thomas Alva Edison, February 13th, 1886

Title: [N310143], Technical Note, Thomas Alva Edison, February 13th, 1886
Editor's Notes: notes and drawing of Tri-phonoplex"
Author: Edison, Thomas Alva
Date: 1886-02-13
Type: Technical Note
Subject: Phonoplex and railroad telegraphy
Folder ID: N310-F
Microfilm ID: 42:312
Document ID: N310143
URL: https://edisondigital.rutgers.edu/document/N310143
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 42