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[PT008A], Patent Caveat, Thomas Alva Edison, January 14th, 1876

Title: [PT008A], Patent Caveat, Thomas Alva Edison, January 14th, 1876
Author: Edison, Thomas Alva
Date: 1876-01-14
Type: Patent Caveat
Subject: Multiple telegraphy (duplex, quadruplex)
Folder ID: PT008-F
Microfilm ID: 8:880
Document ID: PT008A
URL: https://edisondigital.rutgers.edu/document/PT008A
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 8