UNT Libraries Government Documents Department - 6 Matching Results

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Improvement in Car-Couplings.
Patent for car-couplings.
Improvement in Force - Pumps.
Patent for new and improved force pump with three cylinders.
Improvement in Manufacturing Anti-Corrosive Compounds.
Patent for "an anti-corrosive coating for iron and all other metals, and one which in all respects does positively preserve the same, and into the composition of which enters as an element neither lead, oil, nor any other ingredient that contains any destructive or otherwise deleterious acid or alkali." (Lines 7-13) Includes instructions.
Improvement in Plows.
Patent for new and useful improvement in Skeleton Tillage-Plow.
Improvement in Putting Up Caustic Alkalies.
Patent for a method of packaging caustic alkalies inside of treated paper or wood. This patent describes the mixture and use of this treatment.
Improvement in Vibrating Propellers.
Patent for new and useful improvement in vibrating propellers.
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