05/29/1905 Edison, Thomas Alva to Melzer, Adolph
(American Graphophone Co; Macdonald, Thomas Hood) Competition and market structure; Patent infringement; Cylinder record and duplicating technology
[LB072]  General Letterbook Series: Letterbook, LB-072 (1905)
[LB072007; TAEM 197:285]
Courtesy of Thomas Edison National Historical Park.
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