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[PT5105A], Letter from William Abbott Hardy to Thomas Alva Edison, January 8th, 1919

Title: [PT5105A], Letter from William Abbott Hardy to Thomas Alva Edison, January 8th, 1919
Author: Hardy, William Abbott
Recipient: Edison, Thomas Alva
Date: 1919-01-08
Type: Letter
Subject: Patent application; Disc record and duplicating technology
Folder ID: PT5105-F
Microfilm ID: 247:207
Document ID: PT5105A
URL: https://edisondigital.rutgers.edu/document/PT5105A
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