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[PT5138A], Letter from Thomas Alva Edison to William Abbott Hardy, October 30th, 1925

Title: [PT5138A], Letter from Thomas Alva Edison to William Abbott Hardy, October 30th, 1925
Author: Edison, Thomas Alva
Recipient: Hardy, William Abbott
Date: 1925-10-30
Type: Letter
Subject: Patent application; Disc record and duplicating technology
Folder ID: PT5138-F
Microfilm ID: 247:689
Document ID: PT5138A
URL: https://edisondigital.rutgers.edu/document/PT5138A
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