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[PT5109A], Technical Note, Thomas Alva Edison, William Abbott Hardy, May 13th, 1919

Title: [PT5109A], Technical Note, Thomas Alva Edison, William Abbott Hardy, May 13th, 1919
Author: Edison, Thomas Alva
Recipient: Hardy, William Abbott
Mentioned: American Bell Telephone Co; De Forest, Lee
Date: 1919-05-13
Type: Technical Note
Subject: Patent application; Kinetophone and other talking pictures
Folder ID: PT5109-F
Microfilm ID: 247:339
Document ID: PT5109A
URL: https://edisondigital.rutgers.edu/document/PT5109A
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