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[D7941W], Report from C E Spagnolettis, April 17th, 1879

Title: [D7941W], Report from C E Spagnolettis, April 17th, 1879
Editor's Notes: Report on telephone pat 2909(1877) finds it original. Enumerates points for "special consideration:" eg., relation to Hughes micro; Reiss [TAE marg: "Reiss didnt use membrane. This is evident error"]; mica diaphgram call device ["done away with"]. Marg: "This is report only on 1st patent not on 2396."
Author: Spagnolettis, C E
Mentioned: Gray, Elisha; Edison, Thomas Alva
Date: 1879-04-17
Type: Report
Subject: Patent assignments, licenses, and royalties; Telephone
Folder ID: D7941-F
Microfilm ID: 52:525
Document ID: D7941W
URL: https://edisondigital.rutgers.edu/document/D7941W
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 52

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