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[D7801A8E], Letter from Will S Gregory to Thomas Alva Edison, May 3rd, 1878

Title: [D7801A8E], Letter from Will S Gregory to Thomas Alva Edison, May 3rd, 1878
Author: Gregory, Will S
Recipient: Edison, Thomas Alva
Date: 1878-05-03
Type: Letter
Subject: TAE health; Patents; Microphone and other acoustic devices
Folder ID: D7801-F
Microfilm ID: 15:49
Document ID: D7801A8E
URL: https://edisondigital.rutgers.edu/document/D7801A8E
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 15