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Printing Rule and Slug and Type-Form.

Description: Patent for rules and slugs that are quickly and easily arranged and that lock securely to make a type form, including one illustration.
Date: January 4, 1921
Creator: Markwell, Andrew E.
Partner: UNT Libraries Government Documents Department

Covertible Stock and Freight Car.

Description: Patent for an improved process of constructing convertible stock and freight train cars, including illustrations.
Date: May 4, 1920
Creator: Wyatt, Everett
Partner: UNT Libraries Government Documents Department

Machine for Cutting Tire-Casing Treads and Removing Beads

Description: Patent for machines for extracting beads and for cutting treads of tire casings. It is to provide a convenient device for operating on tire casings which are to be stripped and separated into the original elements and to save much labor and avoid much expense.
Date: October 4, 1921
Creator: Hibbs, Cassell D.
Partner: UNT Libraries Government Documents Department

Battery-Plate and Terminal Connection

Description: Patent for improvements on a battery plate and terminal connections. Plate lugs and the terminal for the battery are a solid piece to fit more battery sizes and prevent the lugs from breaking off.
Date: May 4, 1920
Creator: Hawkins, Alda F.
Partner: UNT Libraries Government Documents Department
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