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Harrow.

Description: Patent for a harrow that is easily adjustable to different situations.
Date: December 14, 1909
Creator: Baumgarten, Johan Christian
Partner: UNT Libraries Government Documents Department

Pencil.

Description: Patent for a mechanical pencil, which allows the lead to be extended by turning the cap.
Date: March 16, 1909
Creator: Vasicek, John
Partner: UNT Libraries Government Documents Department
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