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Elevator-Guide
Patent for an elevator guide to be used for safety elevators used in mines. Illustrations included.
Date:
December 29, 1908
Creator:
Martini, Henry
System:
The Portal to Texas History
Reversible Garden-Plow.
Patent for a walking-plow with simple and compact construction. The depth for plowing is adjustable to height of individual operating.
Date:
December 23, 1902
Creator:
Nicholas, Joseph W.
System:
The Portal to Texas History