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[X096A], Letter from Thomas Alva Edison to Clarence J Blake, May 7th, 1878

Title: [X096A], Letter from Thomas Alva Edison to Clarence J Blake, May 7th, 1878
Editor's Notes: TAE to Friend Blake: am having apparatus made for testing your diaphragm
Author: Edison, Thomas Alva
Recipient: Blake, Clarence J
Date: 1878-05-07
Type: Letter
Subject: Cylinder phonograph; Cylinder recording & reproducing apparatus
Folder ID: X096-F
Document ID: X096A
URL: https://edisondigital.rutgers.edu/document/X096A
Rights: Massachusetts Historical Society
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal