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in subjects: "Science and Technology - Tools"  
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Motor-Cultivator

Description: Patent for an improvement to motor cultivators. It provides the operator a way to manually adjust the depth of the furrow and cultivator blade, including illustrations.
Date: March 6, 1917
Creator: Runge, Friedrich Albert
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Self-Locking, Nut.

Description: Patent for a "simple and efficient device" for "securely holding a nut upon a bolt" (lines 76-77).
Date: March 6, 1906
Creator: Galliher, Lawrence M.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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