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in creator/contributor: "Duke, W. A."  
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Spring Frame for Freight Cars.

Description: Patent for new and improved springs for transportation. This design provides "vehicles for the transportation of merchandise . . . with an interior spring-padding, and in some cases with intermediate elastic floors or partitions, by which injury to the load, by jolting while in transit, shall be prevented, and which shall further conduce to the preservation of fruits and other merchandise of a like perishable nature" (lines 22-30).
Date: December 14, 1880
Creator: Shirley, Joseph J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combined Plow and Harrow.

Description: Patent for a simple, inexpensive, and effective combined plow and harrow that can be used as a plow and harrow at the same time, or the operator can detach one and only use the other. The machine can be adjusted to better suit different types of soil.
Date: April 18, 1893
Creator: Lee, George W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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