Ant Trap (open access)

Ant Trap

Patent for an ant trap. Illustration included.
Date: April 14, 1908
Creator: Howard, Martin T.
System: The Portal to Texas History
Road Grader (open access)

Road Grader

Patent for a road grader. Illustration included.
Date: April 5, 1904
Creator: Braly, Hugh L.
System: The Portal to Texas History