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4 Matching Results
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Trephine.
Patent for an improved, simple, durable, inexpensive, and efficient trephine that is easily assembled and takes up little space. It retains better results than other trephines.
Date:
March 21, 1893
Creator:
MacKenzie, Joseph Alexander
System:
The Portal to Texas History
Car Coupling
Patent for rail car coupling. Illustration included.
Date:
August 21, 1906
Creator:
Burran, William Jefferson
System:
The Portal to Texas History
Plow-Fender.
Patent for a plow fender, which can be attached to the plow without harming the plow tooth.
Date:
June 21, 1910
Creator:
Skidmore, John C.
System:
The Portal to Texas History
Tourist's Glass.
Patent for improvements to tourists' glasses, "intended for use to tourists, hunters, ranchmen, botanists, minerologists, and analogous purposes" (lines 25-27) including illustrations.
Date:
July 21, 1914
Creator:
Faehrmann, John M.
System:
The Portal to Texas History