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[NV14129] Technical Note, June 19th, 1878

Title: [NV14129] Technical Note, June 19th, 1878
Author: Batchelor, Charles; Edison, Thomas Alva
Date: 1878-06-19
Type: Technical Note
Subject: Microphone and other acoustic devices
Folder ID: NV14-F
Microfilm ID: 4:285
Document ID: NV14129
URL: https://edisondigital.rutgers.edu/document/NV14129
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 4
License: CC0 1.0 Universal