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[NV18009], Technical Note, Charles Pitt Edison, Thomas Alva Edison, September 19th, 1878

Title: [NV18009], Technical Note, Charles Pitt Edison, Thomas Alva Edison, September 19th, 1878
Editor's Notes: chalk drum?
Author: Edison, Charles Pitt; Edison, Thomas Alva
Date: 1878-09-19
Type: Technical Note
Subject: Telephone
Folder ID: NV18-F
Microfilm ID: 4:1053
Document ID: NV18009
URL: https://edisondigital.rutgers.edu/document/NV18009
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 4