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[QCB06084], Patent Caveat, Thomas Alva Edison, August 19th, 1874

Title: [QCB06084], Patent Caveat, Thomas Alva Edison, August 19th, 1874
Author: Edison, Thomas Alva
Date: 1874-08-19
Type: Patent Caveat
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: QCB06-F
Microfilm ID: 9:371
Document ID: QCB06084
URL: https://edisondigital.rutgers.edu/document/QCB06084
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 9