Resource Type

Improvement in Fence. (open access)

Improvement in Fence.

Patent for a new fence design that "can be adapted to any desired length, width, or height" (lines 14-15). The patent includes illustrations and instructions.
Date: February 15, 1870
Creator: Kerr, James
System: The Portal to Texas History
Track Switch (open access)

Track Switch

Patent for "new and useful Improvements in Track-Switches" (lines 5-6) including illustrations.
Date: February 15, 1916
Creator: South, John T.
System: The Portal to Texas History