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[E1518GAO], Letter from Thomas Alva Edison to Claude Heft Opdyke, July 6th, 1915

Title: [E1518GAO], Letter from Thomas Alva Edison to Claude Heft Opdyke, July 6th, 1915
Author: Edison, Thomas Alva
Recipient: Opdyke, Claude Heft
Mentioned: Bacon, John, Jr; Mason, William Horatio; Meadowcroft, William Henry
Date: 1915-07-06
Type: Letter
Subject: Manufacturing; Chemicals, chemical products, and chemical processes
Folder ID: E1518G-F
Microfilm ID: 261:538
Document ID: E1518GAO
URL: https://edisondigital.rutgers.edu/document/E1518GAO
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 261