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[N051195], Technical Note, Thomas Alva Edison, May 21st, 1880

Title: [N051195], Technical Note, Thomas Alva Edison, May 21st, 1880
Editor's Notes: schematic drawing of recording/playback device for incoming telephone messages (see Mott jrnl May 17). 509--small sketches of RR engine friction wheel?
Author: Edison, Thomas Alva
Date: 1880-05-21
Type: Technical Note
Subject: Miscellaneous electrical technologies
Folder ID: N051-F
Microfilm ID: 33:508
Document ID: N051195
URL: https://edisondigital.rutgers.edu/document/N051195
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 33