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Engineer's Level-Rod
Patent for an engineer's level-rod which introduces a peculiar manner of marking the scale upon the face of the rod.
Date:
November 30, 1880
Creator:
Lynch, Michael L.
System:
The Portal to Texas History
Post-Hole Auger
New and useful improvement in Post-Hole Augers. With this construction the auger will its way easily and rapidly into any kind of soil.
Date:
November 2, 1880
Creator:
Hubby, Mead M.
System:
The Portal to Texas History