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Nut-Lock.

Description: Patent for a nut lock that keeps bolts attached extra tightly.
Date: January 31, 1911
Creator: Greer, Benjamin J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Harrow.

Description: Patent for a harrow for use in orchards that can be moved around easily to avoid trees.
Date: June 20, 1911
Creator: Forkner, Charles E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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