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Stone-Drilling Machine.
Patent for a stone drilling tool, which has water automatically flowing through it.
Date:
March 24, 1908
Creator:
Weiss, Adolf
System:
The Portal to Texas History
Fly-Trap
Patent for an insect trap for flies. Illustrations included.
Date:
December 24, 1912
Creator:
Krueger, Samuel
System:
The Portal to Texas History