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[D9050AEL], Letter from Isaac W Heysinger to Thomas Alva Edison, November 15th, 1890

Title: [D9050AEL], Letter from Isaac W Heysinger to Thomas Alva Edison, November 15th, 1890
Author: Heysinger, Isaac W
Recipient: Edison, Thomas Alva
Date: 1890-11-15
Type: Letter
Subject: Patent interference; Patent assignments, licenses, and royalties; Cylinder phonograph
Folder ID: D9050-F
Microfilm ID: 129:1134
Document ID: D9050AEL
URL: https://edisondigital.rutgers.edu/document/D9050AEL
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