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Core-Drill.
Patent for a core drill for making bore holes in rocks to get out solid samples of the inside of rocks, which has an improved grabbing method for retrieving the piece of rock inside the hole.
Date:
August 3, 1909
Creator:
McLoughlin, Malacha J. & Wynn, John S.
System:
The Portal to Texas History
Stirrup
Patent for "new and useful improvements in stirrups" (lines 5-6), including illustration and instructions.
Date:
August 17, 1909
Creator:
Hooks, George W.
System:
The Portal to Texas History