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[NS7802J], Technical Note, Thomas Alva Edison, June 29th, 1878

Title: [NS7802J], Technical Note, Thomas Alva Edison, June 29th, 1878
Editor's Notes: deaf aerophone and microphone
Author: Edison, Thomas Alva
Date: 1878-06-29
Type: Technical Note
Subject: Microphone and other acoustic devices
Folder ID: NS7802-F
Microfilm ID: 7:767
Document ID: NS7802J
URL: https://edisondigital.rutgers.edu/document/NS7802J
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 7
License: CC0 1.0 Universal