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[PT5137], Patent Application, Thomas Alva Edison, April 28th, 1925

Title: [PT5137], Patent Application, Thomas Alva Edison, April 28th, 1925
Author: Edison, Thomas Alva
Date: 1925-04-28
Type: Patent Application
Subject: Disc phonograph
Folder ID: PT5137-F
Microfilm ID: 247:683
Document ID: PT5137
URL: https://edisondigital.rutgers.edu/document/PT5137
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 247