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[D7828ZER], Letter from U.S. Patent Office. Commissioner to Thomas Alva Edison, December 6th, 1878

Title: [D7828ZER], Letter from U.S. Patent Office. Commissioner to Thomas Alva Edison, December 6th, 1878
Editor's Notes: application for vocal engines allowed
Author: U.S. Patent Office. Commissioner
Recipient: Edison, Thomas Alva
Date: 1878-12-06
Type: Letter
Subject: Patent application; Microphone and other acoustic devices
Folder ID: D7828-F
Microfilm ID: 18:835
Document ID: D7828ZER
URL: https://edisondigital.rutgers.edu/document/D7828ZER
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 18