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in subjects: "Architecture - Civil Works - Bridges"  
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Suspension-Bridge.

Description: Patent for a suspension bridge that improves on a previous patent granted to the inventor (No. 411,499). This patent is meant to "decrease the vertical motion in floor of min span of bridge, thereby adding stability thereto; to provide for a new and improved anchorage for the suspension cables of the bridge; and, furthermore, to improve certain details of construction" (lines 15-20).
Date: January 23, 1894
Creator: Greer, William Henry Clay
Partner: UNT Libraries Government Documents Department

Improvement in Bridges.

Description: Patent for an improvement in Bridges and Self-Supporting Roofs and Girders. The invention provides instruction for "the construction of truss-bridges and self supporting roofs and girders"..."by nailing or bolting securely together successive layers of plank joined at different points."
Date: September 23, 1873
Creator: Davis, Benjamin F.
Partner: UNT Libraries Government Documents Department

Pile Structure.

Description: Patent for piling structures used in bridges and other structures built in sandy areas that allows for digging the piling hole to any depth desired and prevents cave-ins of the interior of the piling before it is filled with concrete.
Date: April 23, 1907
Creator: Pyle, Jesse Theodor
Partner: UNT Libraries Government Documents Department
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