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Author(s)
New York SunLaffan, William M
Recipient(s)
Edison United Manufacturing CoOthers Mentioned
Sawyer-Man Electric Co
Subject(s)
Sales and serviceCompetition and market structure
Incandescent lamp
Letter from William M Laffan, New York Sun to Edison United Manufacturing Co, February 5th, 1889
Laffan, William M
Competition and market structure
Incandescent lamp
