UNT Libraries Government Documents Department - 4 Matching Results

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Cigar-Tip Cutter.
Patent for a cigar clipper that enables the clipper to fold compactly along the edge of the cigar box when not in use.
Propeller
Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
Tax-Calculating Device
Patent for a tax calculating device that will calculate the percentages of the total tax that need to go to different agencies.
Water-Wheel.
Patent for a water wheel for creating power, which has a greater power producing capacity with less water required than usual through the use of a special type of bucket on the wheel.
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