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[PT032AHX1], Technical Note, Thomas Alva Edison, May 1st, 1907

Title: [PT032AHX1], Technical Note, Thomas Alva Edison, May 1st, 1907
Author: Edison, Thomas Alva
Mentioned: Lewis, Frank David
Date: 1907-05-01
Type: Technical Note
Subject: Patent application; Microphone and other acoustic devices
Folder ID: PT032AHX-F
Microfilm ID: 185:350
Document ID: PT032AHX1
URL: https://edisondigital.rutgers.edu/document/PT032AHX1
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 185