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[D7719ZDN], Letter from Thomas Alva Edison to Thomas B A David, November 25th, 1877

Title: [D7719ZDN], Letter from Thomas Alva Edison to Thomas B A David, November 25th, 1877
Editor's Notes: I think I have struck the carbon telephone now that is constant -- few more days will tell the tale
Author: Edison, Thomas Alva
Recipient: David, Thomas B A
Date: 1877-11-25
Type: Letter
Subject: Carbon, coal, glass, ceramics; Telephone
Folder ID: D7719-F
Microfilm ID: 14:994
Document ID: D7719ZDN
URL: https://edisondigital.rutgers.edu/document/D7719ZDN
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 14