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Pneumatic Propulsion Means.

Description: Patent for a new and improved pneumatic propulsion means, including instructions and illustrations.
Date: August 8, 1899
Creator: Walker, James C.
Partner: UNT Libraries Government Documents Department

Cotton-Picker Finger.

Description: Patent that improves on existing design of cotton-picking spindles by using an elastic material instead of bristles. Includes instructions and illustrations.
Date: December 8, 1891
Creator: Canuteson, Ole
Partner: UNT Libraries Government Documents Department
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