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[D7715P], Letter from Lemuel Wright Serrell to Thomas Alva Edison, June 20th, 1877

Title: [D7715P], Letter from Lemuel Wright Serrell to Thomas Alva Edison, June 20th, 1877
Editor's Notes: Austrian duplex and quad patent will expire unless tax is paid -- which included in German patent -- Cases 135 and 136 acoustic specifications sent for TAE to review -- received sextuplex model but no instructions
Author: Serrell, Lemuel Wright
Recipient: Edison, Thomas Alva
Date: 1877-06-20
Type: Letter
Subject: Patent and legal counsel; Multiple telegraphy (duplex, quadruplex); Acoustic telegraphy
Folder ID: D7715-F
Microfilm ID: 14:485
Document ID: D7715P
URL: https://edisondigital.rutgers.edu/document/D7715P
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 14

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