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[NM015E] Technical Note, July 7th, 1878

Title: [NM015E] Technical Note, July 7th, 1878
Author: Batchelor, Charles
Date: 1878-07-07
Type: Technical Note
Subject: Microphone and other acoustic devices
Folder ID: NM015-F
Microfilm ID: 6:748
Document ID: NM015E
URL: https://edisondigital.rutgers.edu/document/NM015E
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 6