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4 Matching Results
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Blackboard-Eraser
Patent for "blackboard-erasers in which the erasing material is detachable from the wood block or handle and permits...being used continuously."
Date:
November 18, 1902
Creator:
Williams, Lavinia B.
System:
The Portal to Texas History
Combined Cultivator, Harrow, and Planter
Patent for "agricultural implements in which a single frame is utilized to support various kinds of mechanisms, and in the present invention there is included a frame of simple and improved construction adapted for carrying and to be used in connection with earth-engaging, implements, such as harrow-teeth and cultivator blades, as well as rollers, for the purpose of crushing clods and leveling the surface of the land." (lines 8-18). Includes description and illustrations.
Date:
November 23, 1905
Creator:
Johnson, Alfred Butler
System:
The Portal to Texas History
Hay Or Cotton Press
Patent for "certain new and useful improvements in Hay or Cotton Presses" (lines 4-6), including illustrations.
Date:
November 12, 1901
Creator:
Hamilton, Robert
System:
The Portal to Texas History
Harness.
Patent for a harness, which leaves the animal's limbs free and is cleaner and easier to use.
Date:
November 24, 1908
Creator:
Holder, William Jefferson
System:
The Portal to Texas History