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[D9050AEM], Letter from Thomas Alva Edison to Isaac W Heysinger, December 1st, 1890

Title: [D9050AEM], Letter from Thomas Alva Edison to Isaac W Heysinger, December 1st, 1890
Editor's Notes: Supplied year, month, and day
Author: Edison, Thomas Alva
Recipient: Heysinger, Isaac W
Mentioned: North American Phonograph Co
Date: 1890-12-01
Type: Letter
Subject: Patent interference; Patent assignments, licenses, and royalties; Cylinder phonograph
Folder ID: D9050-F
Microfilm ID: 129:1135
Document ID: D9050AEM
URL: https://edisondigital.rutgers.edu/document/D9050AEM
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 129