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[N317023] Technical Note, April 6th, 1886

Title: [N317023] Technical Note, April 6th, 1886
Editor's Notes: p. 22 drawing "Machine for Speaking" p. 23 drawings deaf devices; p. 25 drawings possibly related to deaf devices and/or telephone
Author: Edison, Thomas Alva
Date: 1886-04-06
Type: Technical Note
Subject: Microphone and other acoustic devices
Folder ID: N317-F
Microfilm ID: 43:14
Document ID: N317023
URL: https://edisondigital.rutgers.edu/document/N317023
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 43