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[E1565JR], Letter from Philip M Johnson to Thomas Alva Edison, June 21st, 1915

Title: [E1565JR], Letter from Philip M Johnson to Thomas Alva Edison, June 21st, 1915
Author: Johnson, Philip M
Recipient: Edison, Thomas Alva
Date: 1915-06-21
Type: Letter
Subject: Disc record and duplicating technology
Folder ID: [E1565A-F] Edison General File Series -- 1915
Microfilm ID: 263:949
Document ID: E1565JR
URL: https://edisondigital.rutgers.edu/document/E1565JR
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 263