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Portable Power Stump-Boring Machine.
Patent for an invention that improves upon portable power stump boring machines to prevent breakage of the auger or shaft, including instructions and illustrations.
Date:
October 9, 1917
Creator:
Leach, William W.
System:
The Portal to Texas History
Railroad-Rail
Patent for railroad rail that does not need to joined with a bolt and can be locked in place to prevent spreading.
Date:
October 22, 1918
Creator:
Huffman, Henry W.
System:
The Portal to Texas History