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Improvement in Combined Gang-Plow and Cultivator
Patent for a new gang-plow and cultivator design, including instructions and illustrations.
Date:
August 23, 1870
Creator:
Thornton, Sterling C.
System:
The Portal to Texas History
Improvement in Churns
Patent for a geared mechanism to attach to existing churns to aid in the production of cream into butter. Illustrations include front and side elevations.
Date:
January 23, 1877
Creator:
Gray, Whitley F.
System:
The Portal to Texas History
Improvement in Railway-Tracks.
Patent for improvements in the adjoining of railway tracks.
Date:
July 23, 1878
Creator:
Cottingham, Gideon W.
System:
The Portal to Texas History