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[NS7807L], Technical Note, Charles Batchelor, Thomas Alva Edison, February 22nd, 1878

Title: [NS7807L], Technical Note, Charles Batchelor, Thomas Alva Edison, February 22nd, 1878
Editor's Notes: speaking attachment for clocks
Author: Batchelor, Charles; Edison, Thomas Alva
Date: 1878-02-22
Type: Technical Note
Subject: Cylinder phonograph
Folder ID: NS7807-F
Microfilm ID: 7:879
Document ID: NS7807L
URL: https://edisondigital.rutgers.edu/document/NS7807L
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