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[D7702M], Letter from Central District and Printing Telegraph Co, Thomas B A David to Thomas Alva Edison, May 17th, 1877

Title: [D7702M], Letter from Central District and Printing Telegraph Co, Thomas B A David to Thomas Alva Edison, May 17th, 1877
Editor's Notes: If TAE hasn't taken out patent on Copal discovery might be better not to as easier to keep secret than find parties who might infringe
Author: Central District and Printing Telegraph Co; David, Thomas B A
Recipient: Edison, Thomas Alva
Date: 1877-05-17
Type: Letter
Subject: Patents
Folder ID: D7702-F
Microfilm ID: 14:59
Document ID: D7702M
URL: https://edisondigital.rutgers.edu/document/D7702M
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 14

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