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[NA286AAA], Technical Note, Frederick Paul Ott, Thomas Alva Edison, July 20th, 1918

Title: [NA286AAA], Technical Note, Frederick Paul Ott, Thomas Alva Edison, July 20th, 1918
Author: Ott, Frederick Paul; Edison, Thomas Alva
Date: 1918-07-20
Type: Technical Note
Subject: Telephone
Folder ID: NA286-F
Microfilm ID: 231:433
Document ID: NA286AAA
URL: https://edisondigital.rutgers.edu/document/NA286AAA
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 231