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[D7802ZZCX], Letter from Robert B Allen to Thomas Alva Edison, September 28th, 1878

Title: [D7802ZZCX], Letter from Robert B Allen to Thomas Alva Edison, September 28th, 1878
Editor's Notes: sends specification of patent for process of tempering steel
Author: Allen, Robert B
Recipient: Edison, Thomas Alva
Date: 1878-09-28
Type: Letter
Subject: Patents; Metals and minerals
Folder ID: D7802-F
Microfilm ID: 16:161
Document ID: D7802ZZCX
URL: https://edisondigital.rutgers.edu/document/D7802ZZCX
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 16