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Improvement in Motors.
Patent for power-operated motors used "for operating churns" (lines 13-14), with the option of using spring-power, including a detailed explanation and description of the illustration.
Date:
February 19, 1878
Creator:
Cummings, James K.
System:
The Portal to Texas History
Improvement in Plow and Seeder.
Patent for a plow and seeder that has an added "rotating flanged drum composed of two perforated cylinders" (lines 10-11) including a detailed explanation and description of the illustration.
Date:
February 19, 1878
Creator:
Elliott, Pinkney H.
System:
The Portal to Texas History