Resource Type
States
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Linting Machine.
Patent for a linting machine (Carver type) that contains an air pocket at the end of the passage to prevent cotton from clogging the machine.
Date:
August 10, 1920
Creator:
Woodrow, George N. & Bruce, Thomas D.
System:
The Portal to Texas History
Method of Sealing The Walls of Oil-Wells
Patent for a method of sealing oil wells to avoid applying casing to the wells to prevent leakage, seepage, or cave-ins.
Date:
December 7, 1920
Creator:
Nolan, William E.
System:
The Portal to Texas History