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[PT032AHX], Patent Application, Thomas Alva Edison, June 11th, 1907

Title: [PT032AHX], Patent Application, Thomas Alva Edison, June 11th, 1907
Author: Edison, Thomas Alva
Mentioned: Dyer, Frank Lewis; Smith, Dyer
Date: 1907-06-11
Type: Patent Application
Subject: Microphone and other acoustic devices
Folder ID: PT032AHX-F
Microfilm ID: 185:349
Document ID: PT032AHX
URL: https://edisondigital.rutgers.edu/document/PT032AHX
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