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The New York Public Library is a 501(c)(3) | EIN 13-1887440
III. Sprague Electric Railway & Motor Co / Sprague Electric Company
Multiple unit system patent papers and patent litigation papers
Manuscripts and Archives Division, The New York Public Library. "Car switch for operating pilot motor" The New York Public Library Digital Collections. 1890. https://qa-digitalcollections.nypl.org/items/510d47e3-d9d5-a3d9-e040-e00a18064a99
Manuscripts and Archives Division, The New York Public Library. "Car switch for operating pilot motor" New York Public Library Digital Collections. Accessed November 22, 2024. https://qa-digitalcollections.nypl.org/items/510d47e3-d9d5-a3d9-e040-e00a18064a99
Manuscripts and Archives Division, The New York Public Library. (1890). Car switch for operating pilot motor Retrieved from https://qa-digitalcollections.nypl.org/items/510d47e3-d9d5-a3d9-e040-e00a18064a99
<ref name=NYPL>{{cite web | url=https://qa-digitalcollections.nypl.org/items/510d47e3-d9d5-a3d9-e040-e00a18064a99 | title=
(text)
Car switch for operating pilot motor, (1890)|author=Digital Collections, The New York Public Library |accessdate=November 22, 2024 |publisher=The New York Public Library, Astor, Lenox, and Tilden Foundations}}</ref>