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[N134023], Technical Note, Thomas Alva Edison, October 25th, 1884

Title: [N134023], Technical Note, Thomas Alva Edison, October 25th, 1884
Editor's Notes: Telephone: oil and powdwered carbon under diaphragm.
Author: Edison, Thomas Alva
Date: 1884-10-25
Type: Technical Note
Subject: Telephone
Folder ID: N134-F
Microfilm ID: 38:438
Document ID: N134023
URL: https://edisondigital.rutgers.edu/document/N134023
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 38
License: CC0 1.0 Universal