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Knee-Protector.

Description: Patent for knee protectors that provide padding for the wearer when kneeling, attached by springs that allow for comfortable movement and easy donning.
Date: July 15, 1919
Creator: Hooker, Rufus B.
Partner: UNT Libraries Government Documents Department

Power Transmission.

Description: Patent for a power transmission that has a gear that can provide different speeds. This transmission is a simple construction that allows for the driver to easily choose the gear, which allows high efficiency in operation.
Date: September 16, 1919
Creator: Cook, William A.
Partner: UNT Libraries Government Documents Department
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