Country
Counties
Decade
Day
3 Matching Results
Results open in a new window/tab.
Results:
1 - 3 of
3
Well-Drill Wrench.
Patent for use with oil well drills to enable easier rotation and less friction. The invention aids in quick and easy adjustments to oil well parts.
Date:
January 6, 1920
Creator:
Ellinger, William H.
System:
The Portal to Texas History
Snap Cotton Crusher and Separator
Patent for a machine designed for crushing, separating, and cleaning bolls of cotton. Illustrations included.
Date:
April 6, 1909
Creator:
Lamb, William R.
System:
The Portal to Texas History
Poultry Feeding and Watering Device
Patent for "new and useful poultry feeding and watering device" (lines 5-7), including illustration and instructions.
Date:
May 6, 1911
Creator:
Wilson, W. C.
System:
The Portal to Texas History