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[NB260061A], Technical Note, Zachariah Power Halpin, May 21st, 1913

Title: [NB260061A], Technical Note, Zachariah Power Halpin, May 21st, 1913
Author: Halpin, Zachariah Power
Date: 1913-05-21
Type: Technical Note
Subject: Disc phonograph
Folder ID: NB260-F
Microfilm ID: 241:712
Document ID: NB260061A
URL: https://edisondigital.rutgers.edu/document/NB260061A
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 241