This primary source comes from the Records of the Patent and Trademark Office.
National Archives Identifier:
5928299Full Citation: Patent Drawing for W. Dean's Hockey Stick; 6/18/1901; Utility Patent Drawings, 1837 - 1911; Records of the Patent and Trademark Office, Record Group 241; National Archives at College Park, College Park, MD. [Online Version, https://docsteach.org/documents/document/patent-drawing-hockey-stick, February 7, 2025]