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4 Matching Results
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Coupling-Frame for Planters.
Patent for a coupling frame for planters for attaching two planters together.
Date:
December 13, 1910
Creator:
Barkley, Robert A.
System:
The Portal to Texas History
Cattle Guard
Patent for a cattle guard. This invention is for use with railways to prevent passage of stock over the tracks. Illustration included.
Date:
December 4, 1906
Creator:
Jungman, Leo A.
System:
The Portal to Texas History
Surgical Instrument
Patent for a surgical instrument for increasing dilation of the uterine cavity and for taking medical tampons in and out.
Date:
December 3, 1912
Creator:
McMordie, William Emmett
System:
The Portal to Texas History
Cultivator Attachment
Patent for a cultivator attachment. Illustration included.
Date:
December 14, 1909
Creator:
Ross, Edgar L.
System:
The Portal to Texas History