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[W100BA1D], Patent Application, Thomas Alva Edison, April 22nd, 1873

Title: [W100BA1D], Patent Application, Thomas Alva Edison, April 22nd, 1873
Author: Edison, Thomas Alva
Mentioned: Goepel, Paul
Date: 1873-04-22
Type: Patent Application
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: W100BA-F
Document ID: W100BA1D
URL: https://edisondigital.rutgers.edu/document/W100BA1D
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal