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[N020039], Technical Note, Charles Batchelor, Thomas Alva Edison, May 20th, 1879

Title: [N020039], Technical Note, Charles Batchelor, Thomas Alva Edison, May 20th, 1879
Editor's Notes: telephone experiments, liquid telephone; Exp. 2 is motograph engine ie capillary motor; No. 3 telephone battery arrangement; Ex 4 is circuit arrangement
Author: Batchelor, Charles; Edison, Thomas Alva
Date: 1879-05-20
Type: Technical Note
Subject: Telephone
Folder ID: N020-F
Microfilm ID: 30:989
Document ID: N020039
URL: https://edisondigital.rutgers.edu/document/N020039
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 30