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[NS7602D], Technical Note, James Adams, Thomas Alva Edison, July 12th, 1876

Title: [NS7602D], Technical Note, James Adams, Thomas Alva Edison, July 12th, 1876
Editor's Notes: acoustic transfer teleg -- several (7) pages all on Elec Pen Co letterhead -- possibly as illustration to talking telegraph from TI of same date
Author: Adams, James; Edison, Thomas Alva
Date: 1876-07-12
Type: Technical Note
Subject: Acoustic telegraphy
Folder ID: NS7602-F
Microfilm ID: 7:355
Document ID: NS7602D
URL: https://edisondigital.rutgers.edu/document/NS7602D
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 7