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Concrete Wall Mold.

Description: Patent for "a concrete wall mold which is so constructed as to produce a very strong wall having vertically extended channels which form ribs materially reinforcing the structure" (lines 10-14)
Date: June 11, 1920
Creator: Porter, Charles S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Core-Taking Device

Description: Patent for improvements to a core-taking device which will "form a core, in the process of drilling, and embodies means for severing the core, when formed, and retaining the same in the core barrel until, it is withdrawn for inspection" (lines 13-17), including illustrations.
Date: June 20, 1922
Creator: Christian, Walton G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[Release of Oil and Gas Lease]

Description: Document certifying the release of any claim by the Gulf Production Company of any all rights under an oil and gas lease from Hattie M. Sayles to L. A. Crews of a property in Limestone County, Texas.
Date: June 4, 1923
Creator: Nazro, Underwood
Item Type: Refine your search to only Legal Document
Partner: Hardin-Simmons University Library
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