Mary Elizabeth Hallock Greenewalt papers 1769-1950, undated 1879 - 1950

The Mary Elizabeth Hallock Greenewalt Papers offer an impressive array of materials touching not only on the creative processes of an artist-inventor but also on an individuaĺs experience with the United States patent system. Intertwined with the story of Greenewalt́s invention of the color organ...

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Main Author: Greenewalt, Mary Elizabeth Hallock 1871-1950.
Format: Manuscript
Language: English
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