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[D7836ZBP], Letter from P F Conway to Thomas Alva Edison, July 12th, 1878

Title: [D7836ZBP], Letter from P F Conway to Thomas Alva Edison, July 12th, 1878
Editor's Notes: Asks for info on how quad works - he is a little perplexed by it
Author: Conway, P F
Recipient: Edison, Thomas Alva
Date: 1878-07-12
Type: Letter
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: D7836-F
Microfilm ID: 19:531
Document ID: D7836ZBP
URL: https://edisondigital.rutgers.edu/document/D7836ZBP
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 19
License: CC0 1.0 Universal