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[NA269014], Technical Note, Thomas Alva Edison, June 21st, 1917

Title: [NA269014], Technical Note, Thomas Alva Edison, June 21st, 1917
Author: Edison, Thomas Alva
Date: 1917-06-21
Type: Technical Note
Subject: Military; Sound and acoustics
Folder ID: NA269-F
Microfilm ID: 230:489
Document ID: NA269014
URL: https://edisondigital.rutgers.edu/document/NA269014
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 230