Patent for Daniel Halladay's Improvement in Windmills
7/5/1870
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This primary source comes from the Records of the Patent and Trademark Office.
National Archives Identifier: 4688450
Full Citation: Patent for Daniel Halladay's Improvement in Windmills; 7/5/1870; Records of the Patent and Trademark Office, Record Group 241. [Online Version, https://www.docsteach.org/documents/document/patent-for-daniel-halladays-improvement-in-windmills, April 25, 2025]Activities that use this document
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Created by the National Archives Education Team - Reasons for Westward Expansion
Created by the National Archives Education Team
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