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[D8939ABK], Letter from Francis Robbins Upton to Thomas Alva Edison, May 7th, 1889

Title: [D8939ABK], Letter from Francis Robbins Upton to Thomas Alva Edison, May 7th, 1889
Editor's Notes: Enclosed herewith is a copy of Mr. B. F. Card's report upon a number of stations in New York City, whosing per cent of Sawyer Man lamps in use. [Enclosure is dated Harrison, N.J. April 27, 189 and headed: Mem. Showing percent of Sawyer-Man lamps used on circuits of Edison Isolated plants inspected from April 1st to date.]
Author: Upton, Francis Robbins
Recipient: Edison, Thomas Alva
Mentioned: Sawyer-Man Electric Co; Card, Benjamin F
Date: 1889-05-07
Type: Letter
Subject: Competition and market structure; Incandescent lamp; Isolated stations
Folder ID: D8939-F
Microfilm ID: 126:524
Document ID: D8939ABK
URL: https://edisondigital.rutgers.edu/document/D8939ABK
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 126
License: CC0 1.0 Universal

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