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Nut-Lock.

Description: Patent for new and improved Nut-Locks, allowing for "a simple, strong, durable, and efficient arrangement for effectually locking a nut on a bolt..." (lines 16-18), including instructions and illustrations.
Date: April 29, 1916
Creator: Portesi, Santos & Taini, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Folding Bunk Stairs

Description: Patent for stair-step that can be folded up, to be used in bunk bed situations such as in sleeping cars of trains.
Date: December 26, 1916
Creator: Mey, Ella E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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