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[E1664BDM], Letter from Zachariah Power Halpin to John Pierrepont Constable, October 11th, 1916

Title: [E1664BDM], Letter from Zachariah Power Halpin to John Pierrepont Constable, October 11th, 1916
Author: Halpin, Zachariah Power
Recipient: Constable, John Pierrepont
Mentioned: Edison, Thomas Alva
Date: 1916-10-11
Type: Letter
Subject: Testing and quality control; Phonograph
Folder ID: E1664B-F
Microfilm ID: 267:555
Document ID: E1664BDM
URL: https://edisondigital.rutgers.edu/document/E1664BDM
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 267
License: CC0 1.0 Universal