1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Improvement in Two-Horse Equalizers.
Patent for an adjustable device that redistributes weight so that two animals of unequal strength can perform their equal share of work. Includes instructions and illustrations.
Date:
August 2, 1870
Creator:
Sims, Zachariah B.
System:
The Portal to Texas History