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Well Screen.
Patent for a well screen device. The device can keep particulates out of the well water while also restricting water to flow into the well without being released back into the soil.
Date:
February 1, 1921
Creator:
McLean, Marrs
System:
The Portal to Texas History
Building-Block.
Patent for building block that is easily formed or molded. The building block forms tiers to easy move around and modify.
Date:
February 1, 1921
Creator:
Pace, Vara L.
System:
The Portal to Texas History