UNT Libraries Government Documents Department - 2 Matching Results

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Door Check.

Description: Patent for a new and improved door-check. This design "consists in the combination, with a jaw provided with a pocket having an opening in its bottom, of a pivoted bar having a bead or nipple, which bar is passed through the pocket, and of a spring held in the pocket jaw and resting on the bar" (lines 12-17).
Date: November 10, 1885
Creator: Maurer, Adam

Mold for Building Concrete Walls.

Description: Patent for a mold to be used in the construction of concrete walls, including illustrations and instructions.
Date: November 24, 1885
Creator: Carrico, Thomas W.
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