UNT Libraries Government Documents Department - 5 Matching Results

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Air Pump
Patent for an air pump for the delivery of air to the tire of a wheel.
Powder Blower
Patent for a new and improved powder blower used to insert powder medicine into the vagina, including illustrations and instructions.
Pump-Filter.
Patent for a pump filter, designed for double acting air pumps, that prevents the passage of foreign matter (oil, dust, dirt) from the pump outlet.
Spring Axle
Patent for an axle to provide assistance to the wheel to adapt to the irregularities of the surface.
Windmill
Patent for Windmill Improvements that includes a mounted rotor for horizontal rotation, including illustrations.
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