04/05/1903 Edison, Thomas Alva -- Technical Notes and Drawings
(Aylsworth, Jonas Walter; Hammer, William Joseph) Photography; Edison effect and etheric force; Vacuum and glass bulb; Cylinder record and duplicating technology; Chemistry; Electricity and magnetism
[NM035]  Notebook Series -- Miscellaneous Notebooks: Notebook, E-4297 (1903, 1912)
[NM035171; TAEM 179:233]
Courtesy of Thomas Edison National Historical Park.
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