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Hammer, William J. (William Joseph), 1858-1934 (electrical engineer) (276)
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online_media_type:Images
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Model of the [Edison Electric Co.] Pearl Street Station exhibited at St. Louis [caption un...
James Hamblet [black & white photoprint].
Charles J. Kintner [black & white photoprint, cabinet print].
[William Hammer sitting in his lab, black & white photoprint]
An Electric Day, page 619, [magazine article]
Burning Out / Birthmarks, Blemishes of the / Skin and Even Turning a Negro / White with th...
[Interior of Edison's laboratory, Menlo Park, New Jersey : black & white photoprint.]
[Howard University School of Engineering : acetate film photonegative, ca. 1930s.]
[Howard University School of Engineering : acetate film photonegative, ca. 1930s.]
[Howard University School of Engineering : acetate film photonegative, ca. 1930s.]
[Howard University School of Engineering : acetate film photonegative, ca. 1930s.]
Aero Club of America
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![Model of the [Edison Electric Co.] Pearl Street Station exhibited at St. Louis [caption under image: black & white photoprint]](/img/loading-large.gif)