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in subjects: "Science and Technology"  
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Improvement in Churns.

Description: Patent for a better churn which makes butter faster, releases butter from the churn more easily, and is simple to create and use. Includes instructions and illustrations.
Date: January 1, 1878
Creator: McConnell, John A. & McConnell, William V.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Trace Carrier.

Description: Patent for improvements to a harness back band buckle and chain carrier, so that "strain is taken off from the center of the buckle, where the ordinary buckles often break" (lines 71-73), including illustrations.
Date: January 31, 1893
Creator: Nichols, Edward A.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pipe-Wrench.

Description: Patent for the improvement of the pipe wrench for heavy construction. This invention was made to allow workers to use a variety of parts and arrangements depending on the type of pipe they are working with.
Date: January 4, 1921
Creator: Reed, Clarence E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Cotton-Chopper.

Description: Patent for an adjustable cotton chopper which allows for the chopper to be set to different heights (vertically).
Date: January 8, 1918
Creator: Seamon, Albert H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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