Harrow. (open access)

Harrow.

Patent for a harrow, which has adjustable teeth and van also be used as a cultivator.
Date: March 31, 1908
Creator: Wells, George H.
System: The Portal to Texas History
Combination Rail-Joint and Nut-Lock (open access)

Combination Rail-Joint and Nut-Lock

Patent for a combination rail joint and nut lock to hold railroad tracks in place.
Date: December 31, 1912
Creator: Iley, William A.; Money, Robert L. & Money, Benjamin F.
System: The Portal to Texas History