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[PT032AAU], Patent Application, Thomas Alva Edison, February 20th, 1888

Title: [PT032AAU], Patent Application, Thomas Alva Edison, February 20th, 1888
Editor's Notes: Patent appl wax phonogram blanks: object to improve articulation of phonograph by burnishing wax surface. Addresses tool marks seen under magnifying glass that produce foreign sounds in reproducer. Filed 2 March 1888.
Author: Edison, Thomas Alva
Date: 1888-02-20
Type: Patent Application
Subject: Cylinder record and duplicating technology
Folder ID: PT032AAU-F
Microfilm ID: 114:284
Document ID: PT032AAU
URL: https://edisondigital.rutgers.edu/document/PT032AAU
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 114

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