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[D8637J], Patent Issued, Thomas Alva Edison, April 7th, 1886

Title: [D8637J], Patent Issued, Thomas Alva Edison, April 7th, 1886
Editor's Notes: Patent specs in French for duplex and qualdruplex telegraphs for a patent of 15 years for some perfections of the telegraph invented by TAE who is represented by D.H. Brandon, "living in Paris."
Author: Edison, Thomas Alva
Mentioned: Brandon, David Hunter
Date: 1886-04-07
Type: Patent Issued
Subject: Patent assignments, licenses, and royalties; Multiple telegraphy (duplex, quadruplex)
Folder ID: D8637-F
Microfilm ID: 79:1068
Document ID: D8637J
URL: https://edisondigital.rutgers.edu/document/D8637J
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 79

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