3 Matching Results
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Improvement in Saws.
Patent for improvement in saws by way of the construction of beveled edged teeth with concave sides.
Date:
April 26, 1870
Creator:
Littlepage, C. V.
System:
The Portal to Texas History
Improvement in Furnaces.
Patent for improvements in furnaces, using steam to create heat. It includes a description and illustration.
Date:
April 12, 1870
Creator:
Morris, Joseph R.
System:
The Portal to Texas History
Improvement in Sulky Plows
Patent for the improvement of sully plows by regulating the depth of furrow.
Date:
April 5, 1870
Creator:
Boyd, John G. & Bailey, Allen
System:
The Portal to Texas History