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5 Matching Results
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Cultivator.
Patent for a cultivator that has an improved method of attaching a harrow to the cultivator.
Date:
February 7, 1911
Creator:
Kelly, Robert Marvin
System:
The Portal to Texas History
Steam Boiler Feeder
Patent for improvments in automatic steam-boiler feeders
Date:
April 7, 1887
Creator:
Kelly, George A.
System:
The Portal to Texas History
Plow
Patent for "means which will rigidly hold the point against independent movement toward the landslide of the plow" (lines 45-47).
Date:
May 7, 1901
Creator:
Kelly, George Addison
System:
The Portal to Texas History
Rotary Engine
Patent for a rotary engine. Illustration included.
Date:
November 7, 1905
Creator:
Kelly, George A.
System:
The Portal to Texas History
Rotary Engine
Patent for a rotary engine. Illustration included.
Date:
November 7, 1905
Creator:
Kelly, George A.
System:
The Portal to Texas History