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3 Matching Results
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Nut-Lock.
Patent for a nut lock for use on vehicle axles, which is easily taken on and off.
Date:
March 23, 1909
Creator:
Ruff, Charley C. & Ruff, John H.
System:
The Portal to Texas History
Rural-Mail-Delivery System.
Patent for an improved system of delivering mail to inhabitants of rural areas, including instructions and illustrations.
Date:
March 23, 1915
Creator:
Clayton, Ira B. & Moore, Nealy
System:
The Portal to Texas History
Cotton-Chopper.
Patent for a content chopping device with an adjustable lever and cutters. The cotton chopper can be attached to different cultivator frames (farm equipment) and adjusted to chop or thin out different rows of cotton stalks (or other plants).
Date:
March 23, 1915
Creator:
Adams, Joe B. & Miller, Lawrence M.
System:
The Portal to Texas History