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Cultivator.

Description: Patent for a cultivator, which has an adjustable shovel tooth.
Date: February 1, 1910
Creator: Upshaw, Foy
Partner: UNT Libraries Government Documents Department

Combination Battery Vault, Cistern, and Semaphore Foundation

Description: Patent for an improvement to combination battery vaults, cisterns and semaphore foundations used in railway signal systems, including illustrations and descriptions.
Date: April 1, 1913
Creator: Johnson, John A.
Partner: UNT Libraries Government Documents Department
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