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Improvements in Wheel-Plows. (open access)

Improvements in Wheel-Plows.

Patent for an improvement in riding attachment for plows.
Date: September 21, 1875
Creator: Flow, James
System: The Portal to Texas History
Improvement in Adding-Machines. (open access)

Improvement in Adding-Machines.

Patent for an improved adding-machine design.
Date: December 7, 1875
Creator: Butt, Dennis, L. R.
System: The Portal to Texas History