Patent Drawing for R. J. Spalding's Flying Machine
3/5/1889
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This primary source comes from the Records of the Patent and Trademark Office.
National Archives Identifier: 6277786
Full Citation: Patent Drawing for R. J. Spalding's Flying Machine; 3/5/1889; Records of the Patent and Trademark Office, Record Group 241. [Online Version, https://www.docsteach.org/documents/document/patent-drawing-for-r-j-spaldings-flying-machine, March 28, 2024]Rights: Public Domain, Free of Known Copyright Restrictions. Learn more on our privacy and legal page.