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in creator/contributor: "Ackman, George, Jr."  
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Nut-Lock.

Description: Patent for a nut lock for railroad joints, which keeps the nuts in place in the tracks.
Date: July 23, 1907
Creator: Vuncannon, Thomas Peter
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Puzzle.

Description: Patent for a puzzle made of interlocking blocks that are attached by a cord through holes in the blocks, that, when fully assembled, forms the shape of a Chinese cross.
Date: August 23, 1921
Creator: Hime, Clint T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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