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[QCB06087], Patent Caveat, Thomas Alva Edison, February 24th, 1875

Title: [QCB06087], Patent Caveat, Thomas Alva Edison, February 24th, 1875
Author: Edison, Thomas Alva
Date: 1875-02-24
Type: Patent Caveat
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: QCB06-F
Microfilm ID: 9:377
Document ID: QCB06087
URL: https://edisondigital.rutgers.edu/document/QCB06087
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