1 Matching Results
Results open in a new window/tab.
Results:
1 - 1 of
1
Tractor-Coupling
Patent for tractor coupling. The object of the invention is to provide a coupling for tractor and plow. When a plow hits an obstruction, the coupling will automatically disengage tractor and plow without breaking any parts.
Date:
December 21, 1920
Creator:
Hart, Lawrence H.
System:
The Portal to Texas History