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[PT032AHN], Patent Application, Thomas Alva Edison, September 13th, 1906

Title: [PT032AHN], Patent Application, Thomas Alva Edison, September 13th, 1906
Editor's Notes: Supplied year, month, and day
Author: Edison, Thomas Alva
Mentioned: Dyer, Frank Lewis; Holden, Delos
Date: 1906-09-13
Type: Patent Application
Subject: Microphone and other acoustic devices
Folder ID: PT032AHN-F
Microfilm ID: 185:188
Document ID: PT032AHN
URL: https://edisondigital.rutgers.edu/document/PT032AHN
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 185