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Rail Joint

Description: Patent for Rail Joint
Date: November 21, 1916
Creator: Walker, Asa
Partner: UNT Libraries Government Documents Department

Nut-Lock

Description: Patent for a nut lock. Illustrations included.
Date: May 21, 1912
Creator: Lance, Andrew M.
Partner: UNT Libraries Government Documents Department

Specification of Letters Patent.

Description: Patent for improvements in the seals for well screens to provide a permanent joint or seal between the screen and the casing with out blocking passage.
Date: June 21, 1921
Creator: Thomson, Alexander
Partner: UNT Libraries Government Documents Department

Rail Plate And Fastener

Description: Patent for rail plate fastener. This invention is designed to secure rails to ties without the use of spikes. Illustration included.
Date: June 21, 1904
Creator: Butterfield, Walter V.
Partner: UNT Libraries Government Documents Department
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