Resource Type

Improvement in Fish and Animal Traps (open access)

Improvement in Fish and Animal Traps

Patent for an improvement in the design of traps intended for catching fish or animals. Includes illustration.
Date: September 18, 1872
Creator: Hartcourt, John T.
System: The Portal to Texas History
Improvement in Railroad-Switches. (open access)

Improvement in Railroad-Switches.

Patent for a railway switch for wooden or iron railway-tracks.
Date: September 4, 1877
Creator: Harding, John W.
System: The Portal to Texas History