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Steel Form for Laying Concrete

Description: Patent for metal forms used in the laying of concrete for construction of sidewalks, curbs, or gutters.
Date: October 24, 1916
Creator: Cramer, Walter H.
Partner: UNT Libraries Government Documents Department

Paper Separator

Description: Patent for a paper separator.
Date: October 24, 1905
Creator: Brintnall, Harry W. & Venney, Felix A.
Partner: UNT Libraries Government Documents Department

Design for a Nut-Lock Washer.

Description: Design patent for a nut-lock washer that consists of an annular disk having a depression on the margin of its inner opening and with an incision cut in from the periphery, forming a tongue.
Date: October 24, 1899
Creator: Carroll, Samuel C.
Partner: UNT Libraries Government Documents Department
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