Resource Type
Counties
Decade
Month
6 Matching Results
Results open in a new window/tab.
Results:
1 - 6 of
6
Casing-Point
Patent for an improved casing point with improvements in the strainer or screen frame for wells.
Date:
December 9, 1902
Creator:
Lindstrom, Conrad
System:
The Portal to Texas History
Grader-Blade.
Patent for a new form of grader blade for road graders and ditchers for road and ditch work, with illustration.
Date:
December 4, 1917
Creator:
Wendell, Benjamin J.
System:
The Portal to Texas History
Valve.
Patent for improvement in valves, by means of assuring a tight operating stem. The stem is comprised of two movable sections incorporated into a design purposed to prevent leakage by the stem. Additional mentions include acknowledged awareness of susceptibility to change and modification, convenience and facility, and simplicity as related to cost.
Date:
December 24, 1918
Creator:
Pratt, Robert L.
System:
The Portal to Texas History
Weeder
Patent for a weeder that breaks up the ground as well as cutting weeds.
Date:
December 31, 1912
Creator:
Wind, Iver Ebbesen
System:
The Portal to Texas History
Seed-Planter
Patent for a seed planter. Illustrations included.
Date:
December 3, 1907
Creator:
McGuire, Daniel Harry
System:
The Portal to Texas History
Hay Rake
Patent for "new and useful improvements in Hay-Rakes." (line 5-6). "Improved means for governing the dumping movements of the rake." (lines 11-12).
Date:
December 27, 1921
Creator:
Mottier, Walter F.
System:
The Portal to Texas History