Resource Type
States
Counties
3 Matching Results
Results open in a new window/tab.
Results:
1 - 3 of
3
Colter.
Patent for a Colter attachment for plows that can be adjusted to various angles and increases the efficiency of the plow.
Date:
August 31, 1920
Creator:
Dillon, Robert L.
System:
The Portal to Texas History
Gun-Magazine.
Patent for an improved gun magazine that consists of a glass lining with openings on its sides.
Date:
August 1, 1893
Creator:
Whitten, Burrel Franklin & Porcher, Joseph Ford
System:
The Portal to Texas History
Plow.
Patent for improvements in reversible plows: "The object of the present invention is to simplify and improve the construction of reversible plows and enable them to be adjusted to any desired depth" (lines 9-12).
Date:
August 18, 1891
Creator:
McKay, Robert B.
System:
The Portal to Texas History