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[PT005D1], Patent Specification, Thomas Alva Edison, April 16th, 1873

Title: [PT005D1], Patent Specification, Thomas Alva Edison, April 16th, 1873
Author: Edison, Thomas Alva
Mentioned: Munn & Co; Goepel, Paul
Date: 1873-04-16
Type: Patent Specification
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: PT005D-F
Microfilm ID: 8:634
Document ID: PT005D1
URL: https://edisondigital.rutgers.edu/document/PT005D1
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 8
License: CC0 1.0 Universal