Hand Plow Propeller (open access)

Hand Plow Propeller

Patent for hand plow propeller. Illustration included.
Date: September 6, 1904
Creator: Avant, Leonidas W.
System: The Portal to Texas History
Self Measuring Scale (open access)

Self Measuring Scale

Patent for self measuring scale. Illustration included.
Date: September 19, 1904
Creator: Jordan, James T.
System: The Portal to Texas History