Wire-Clamp. (open access)

Wire-Clamp.

Patent for a wire clamp.
Date: July 14, 1914
Creator: Peckenpaugh, John Ervin
System: The Portal to Texas History
Rail-Joint. (open access)

Rail-Joint.

Patent for railroad joint designed to reduce the shifting of the rails while being easy to construct.
Date: July 10, 1917
Creator: Autry, Lemual Arlanda
System: The Portal to Texas History