05/22/1905 Edison, Thomas Alva [supplied or conjectured] to Melzer, Adolph
(American Graphophone Co; Macdonald, Thomas Hood) Patent infringement; Cylinder record and duplicating technology
[QP021]  Legal Series -- Legal Department Records -- Phonograph -- Case Files: American Graphophone Company v. National Phonograph Company (Macdonald Patents 606,725 and 626,709)
[QP021AAA; TAEM 224:769]
Courtesy of Thomas Edison National Historical Park.
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