2 Matching Results
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Rock-Drill
Patent for a rock drill design for quick drilling.
Date:
August 16, 1921
Creator:
Alford, Allen
System:
The Portal to Texas History
Plaiting-Machine.
Patent for a machine that folds or plaits cloth in the desired style.
Date:
August 16, 1921
Creator:
Odle, Ophelia & Odle, Leo Estelle
System:
The Portal to Texas History