Drawing of Submarine Explorer
2/18/1830
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In 1830, Sewall Short and Noah Bradford submitted a patent application for the submarine explorer. In their application, they claimed that they had created a water-tight suit, different from any diving apparatus known before.
This primary source comes from the Records of the Patent and Trademark Office.
Full Citation: Drawing of Submarine Explorer; 2/18/1830; Restored Patent Drawings, 1837–1847; Records of the Patent and Trademark Office, Record Group 241; National Archives at College Park, College Park, MD. [Online Version, https://www.docsteach.org/documents/document/drawing-of-submarine-explorer, April 24, 2024]